Video: Four injured as open-topped Paris tourist bus hits tunnel roof

A double-decker open-roof bus has hit the roof of a Paris tunnel, injuring four people, one of them seriously, a tour bus company said.

Four people were injured, one seriously, when a double-decker tour bus got stuck inside a tunnel under a Paris bridge, police and the bus company have said.

Dozens of police officers were seen around the bus as it backed out of the tunnel several hours after the accident.