TWO separate collisions involving a total of seven vehicles caused major disruption in the Wallasey tunnel this morning.
One of the collisions occurred in the tunnel itself, while another happened on the approach road.
Both were on the Liverpool-bound carriageway and happened at around 8.15am.
It led to the Liverpool-bound tunnel being completely closed to allow the scene to be cleared and a contraflow set up in the south-bound (Wallasey) tube, with traffic travelling in both directions.
The collisions caused severe disruption during the morning rush-hour, with slow-moving traffic between the toll booths and Liverpool city centre.
There were no reports of any injuries.
The first collision, which took place inside the tunnel itself, involved four vehicles. It is believed this led to the second collision, involving another three vehicles, shortly afterwards.
It is not yet known what caused the collisions.
One commuter told the ECHO: “When I was waiting for the bus to work I knew something must have happened in the tunnels because there was traffic stretching all the way back to Mill Lane in Wallasey.
“When the bus came it took another 20 minutes for us to even make it to the toll booths. When we finally crawled into the tunnel I could see at least two silver cars at the side, flashing lights and tunnel police cars. Everyone was already annoyed about the tunnel tolls going up and now this.
“It made me 40 minutes late for work. The tunnels are a joke, there is always a problem in the morning.”
Another car driver said: “It was absolute bedlam trying to get through.”
A spokeswoman for Merseytravel, which operates the Mersey tunnels, said: “We decided to put in place a contra-flow system to alleviate some of the congestion and to keep the traffic moving.”