TOKYO (AP) — A commuter train and a truck loaded with boxes of citrus collided at a rail crossing near Tokyo on Thursday, injuring at least 30 people, Japanese authorities said.

The collision occurred just before noon as the truck apparently entered a railway crossing in Yokohama, a port city near Tokyo, local police said. The Yokohama fire department said at least 30 people received first aid at the scene.

Television footage on Japan's NHK national broadcaster showed the Keikyu express train derailed and tilted. Next to it was a mangled truck. Gray smoke billowed from the truck and the train cars were blackened. Cardboard boxes and oranges from the truck were scattered on the ground.

The truck driver was pulled out of the debris and taken to a nearby hospital, where he was in serious condition, according to NHK. It said the injuries to others were not life threatening.

A male passenger who was in the front car told NHK that the train suddenly stopped after he heard a honking, and then he saw a fire. He said he hurt his neck in the accident.

Police said the extent of damage and the cause of the collision were under investigation.