A train collided with a truck on Thursday in Yokohama, a city just south of Tokyo, causing the train to derail in an accident that killed at least one person and injured 34 others.

It was a rare crash in a country that prides itself on its train performance, with one of the world’s best rail safety records. The cause of the crash was not immediately known.

The 67-year-old driver of the truck was believed to have been killed, according to NHK, the national broadcaster, which cited fire department officials. Most of those injured had non-life-threatening injuries, NHK said.

The collision occurred shortly before noon at a crossing on the Keikyu Line near the Kanagawa-shimmachi station, where the train usually runs about 75 miles per hour, according to NHK.