BERLIN (AP) — Police say a night train traveling from Berlin to Zurich has collided with a small construction vehicle in southwestern Germany. No one was hurt.

Federal police said the accident happened south of Freiburg about 7 a.m. Sunday. The train, operated by Austria's OeBB, ran into the smaller vehicle at about 80 kph (50 mph), but construction workers were able to jump off before the crash.

There were about 300 passengers aboard the train, but neither they nor the driver were hurt. The train was able to return to Freiburg, from where passengers were traveling to Switzerland on other trains.

It wasn't immediately clear why the night train and the construction vehicle were on the same track. Police said they're investigating whether it was a technical or human error.