TOKYO (AP) — The Latest on the Tokyo Olympics, which are taking place under heavy restrictions after a year’s delay because of the coronavirus pandemic:

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Tokyo Olympics organizers say they have banished six people, including two silver medalists from the country of Georgia, for breaking rules designed to protect against COVID-19 cases.

Toshiro Muto, the games chief executive, says it was a “clear and serious violation” of the so-called playbooks of health and safety rules for two Georgian judokas to go sight-seeing.

Vazha Margvelashvili and Lasha Shavdatuashvili were seen near Tokyo Tower on Tuesday, after their events were finished.

Muto says the Georgian embassy in Tokyo has apologized for the incident.

The other four were accredited contractors from Britain and the United States arrested for allegedly using cocaine before the Olympics opened.

Muto says there have been eight cases of games credentials being temporarily suspended.

In four cases, organizers collected a “signed pledge” from people suspected of breaking rules. Ten strict warnings were issued, Muto says.

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MEDAL ALERT

Australia’s Logan Martin capped quite a show in BMX freestyle’s Olympic debut, putting together a sterling first run to win gold at the Tokyo Games.

Britain’s Charlotte Worthington started the high-flying act by winning women’s gold and Martin followed with an equally-impressive performance.

The 27-year-old two-time world champion posted a 93.3 in his first ride and watched as the other eight riders failed to catch him. Martin went for a victory lap after the final rider made his second run, but cut it short after a hard landing on a jump.

Venezuela’s Daniel Dhers secured silver with a 92.05 on his second run and Britain’s Declan Brooks had a second-run 90.8 to take bronze.

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Simone Biles will not defend her Olympic gold medal on floor exercise.

USA Gymnastics says the six-time Olympic medalist has opted not to compete on floor.

She won gold in the event in Rio de Janeiro and placed second in qualifying last week. Jennifer Gadirova of Britain will replace Biles in Monday’s finals.

USA Gymnastics says Biles has not decided whether to participate in Tuesday’s balance beam final.

Biles is dealing with a mental block that in gymnastics is referred to as “the twisties.” She is having trouble figuring out where her body is in relation to the ground when in the air.

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MEDAL ALERT

Gong Lijiao of China has won her first Olympic gold medal in the shot put with a personal best of 20.58 meters.

The reigning two-time world champion produced two efforts over 20 meters on her last two attempts at the Olympic Stadium to cement her victory ahead of Raven Saunders of the United States, who took the silver medal with 19.79.

Veteran Valerie Adams of New Zealand won a bronze medal in her fifth and likely last Olympics. The 36-year-old Adams is a two-time Olympic champion and in Tokyo became the first woman to qualify for five Olympic finals in the shot.

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MEDAL ALERT

American Caeleb Dressel has won his fifth gold medal of the Tokyo Games, finishing off one of the great performances in Olympic history.

Dressel swam the butterfly leg as the Americans set a world record in the 4x100-meter medley relay with a time of 3 minutes, 26.78 seconds. That eclipses the mark of 3:27.28 they set at the 2009 Rome world championships in rubberized suits.

Ryan Murphy, Michael Andrew and Zach Apple joined Dressel on the winning team. That ensured the Americans closed out the swimming competition with another gold in a race they’ve never lost at the Olympics.

Earlier in the session, Dressel won the 50 freestyle for his third individual title of the games. He also won two golds on the relays.

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MEDAL ALERT

Emma McKeon has claimed her historic seventh swimming medal at the Tokyo Olympics with Australia’s victory in the women’s 4x100 medley relay.

The 27-year-old from Brisbane becomes the first female swimmer to win seven medals at a single games. The only men to do it are Michael Phelps, Mark Spitz and Matt Biondi.

Capping a brilliant performance by the entire Aussie women’s team, McKeon followed her victory in the 50-freestyle earlier in the session to take the butterfly leg on the relay. Cate Campbell closed strong on the freestyle, touching in an Olympic record of 3 minutes, 51.60 seconds to edge the two-time defending champion Americans.

Kaylee McKeown and Chelsea Hodges started things off for the winning Australian team.

Abbey Weitzeil touched in 3:51.73 to give the United States a silver. She anchored a team that also included teenagers Regan Smith, Lydia Jacoby and Torri Huske.

The bronze went to Canada in 3:52.60.

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MEDAL ALERT

Britain’s Charlotte Worthington put on a show in BMX freestyle’s Olympic debut, landing the first 360 backflip in women’s competition to knock off American Hannah Roberts at the Tokyo Olympics.

Roberts, a three-time world champion at 19, set the bar in her opening run, landing a backflip with a tailspin for a 96.1.

Worthington crashed on her first run, but pulled out all the stops in her second. The 25-year-old added a front flip to her 360 backflip and closed with another backflip for a 97.5.

Roberts, the top seed, had a chance to top the Brit, but landed hard off an early jump and waved off the rest of her second run.

Switzerland’s Nikita Ducarroz took bronze with an 89.2 in her second run.

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MEDAL ALERT

American Bobby Finke has won gold in the grueling men's 1,500-meter freestyle race.

The American won his second gold medal of the Tokyo Olympics with another strong finishing kick.

Just as he did in winning the 800-meter freestyle, Finke stayed closed throughout the 30-lap race and turned on the speed at the end. He touched in 14 minutes, 39.65 seconds.

Ukraine’s Mykhailo Romanchuk took the silver in 14:40.66, while the bronze went to Germany’s Florian Wellbrock in 14:40.91. Italy’s Gregorio Paltrinieri faded to fourth in 14:45.01.

The top four were close nearly the entire race, often separated by less than a second at the turns. But that was right where Finke needed to be. After his closing lap in the 800, he knew he had the speed at the end to beat everyone else.

Finke has been perhaps the biggest American surprise at the pool. Relatively unknown before the U.S. trials, he become the first American male to win the 1,500 since Mike O’Brien at the 1984 Los Angeles Games.

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MEDAL ALERT

Australia’s Emma McKeon has claimed the gold medal in the women’s 50-meter freestyle at the Tokyo Olympics.

It is the sixth medal of the games for the Aussie star, who has one more chance to make it seven in the 4x100 medley relay.

McKeon completed a sweep of the 50- and 100-meter freestyle with an Olympic-record time of 23.81 seconds. The silver went to Sweden’s Sarah Sjöström in 24.07, while defending Olympic champion Pernille Blume of Denmark settled for bronze this time in 24.21.

American Abbey Weitzeil finished last in the eight-woman field.

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MEDAL ALERT

American Caeleb Dressel has won his fourth swimming gold medal of the Tokyo Olympics with a victory in the 50-meter freestyle.

Dressel cruised to a relatively easy victory in the frenetic dash from one end of the pool to the other, touching in an Olympic record of 21.07 seconds.

France’s Florent Manaudou repeated as the Olympic silver medalist in 21.55, while Brazil’s Bruno Fratus claimed the bronze in 21.57 -- edging out American Michael Andrew for the final spot on the podium.

Dressel has one more shot at a gold in the 4x100 medley relay, an event the United States has never lost at the Olympics. He’ll swim the butterfly leg in a race that caps nine days of swimming competition at the Tokyo Aquatics Centre.

If Dressel claims a fifth victory, he would join Americans Michael Phelps, Mark Spitz and Matt Biondi, as well as East Germany’s Kristin Otto, as the only swimmers to win as many as five golds at a single Olympics. Phelps did it three times.

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Katie Ledecky is bidding farewell to the Tokyo Games after claiming four medals, two of them gold.

The American swimming star went on Twitter to post her thanks to the people of Tokyo and everyone who gave her “tremendous support this week and over the years!” Even though the stands were largely empty at the Olympic pool because of the coronavirus pandemic, Ledecky says she “could hear you all!”

Ledecky wasn’t quite as successful as at the 2016 Rio Olympics, where she swept her three individual events and also won a gold and a silver in the relays.

But she did win gold in her two longest events, the 800- and 1,500-meter freestyle, in addition to swimming a brilliant anchor leg that almost pulled out a gold for the United States in the 4x200 free relay.

Along the way, Ledecky became the first female swimmer to win six individual golds in her career, the first woman to win the 800 free at three straight Olympics, and one of just five American female swimmers to earn 10 career medals.

At age 24, Ledecky has no plans to stop swimming.

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UPSET ALERT

Americans Sarah Sponcil and Kelly Claes are out of the beach volleyball tournament after a three-set loss to Canada in the knockout round opener.

Heather Bansley and Brandie Wilkerson beat the U.S. 22-24, 21-18, 15-13 at the Shiokaze Park venue. Americans Phil Dalhausser and Nick Lucena are set to meet Qatar in the afternoon session.

Claes and Sponcil entered the games as the hottest team in the world, winning the last two events of the pandemic-extended qualifying period to grab the second U.S. spot in Tokyo. In the process, they knocked out five-time Olympian Kerri Walsh Jennings.

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