German police are investigating the captain of the Mein Schiff 3 cruise liner after it collided with two container ships in Bremerhaven .

The collision caused damage estimated to be in the millions of euros and forced the cancellation of a 20-day Canary Islands cruise, with further voyages potentially affected.

Why are police investigating the captain?

A police spokesperson said proceedings over a possible administrative offense had been opened to establish whether the captain breached his duty of care. Police have not specified the suspected lapse.

Broadcaster RTL reported that investigators spoke to the captains of all three vessels overnight into Monday.

How did the collision happen?

Tugboats were helping the nearly fully booked cruise ship leave the northern German port on Sunday evening when a gust of wind pushed it toward two moored container ships, police said.

The liner was carrying 2,428 passengers and 922 crew members.…