The collision occurred at about 11am today, prompting authorities to close theA6 towards Trier.

According to police a car fell under the trailer of a truck as it move to the right lane of the tunnel.

Seconds later another vechicle crashed into the side of the first. The driver in the first car was seriously injured and has been taken to hospital. A passenger and the second car’s driver received minor injuries.

The tunnel was reopened several hours later after the wreckage was cleared.