Bremen (dpa / lni) - Two cargo ships collided on the Weser in the Bremen-Vegesack area on Sunday evening.

As the Bremen police announced on Monday, they collided for an unknown cause.

People were not injured, and supplies did not leak.

At around 7.30 p.m., a 180-meter-long ship sailed downstream on the Weser and a 153-meter-long ship headed for Bremen.

When passing by Vegesack, the two got too close.

Both freighters were initially able to continue and each landed at a berth in Bremen and Bremerhaven.

As a result of the collision, the outer skin of the smaller ship was dented over a length of about 30 meters.

The other freighter had a dent in the bow.

The nautical investigators of the water police started investigating the cause of the accident.

The ships are only allowed to leave the ports again when the damage has been repaired or it is clear that there is no risk to ship safety, it said.