Collision closes Kingsway Tunnel after head-on crash
The Wallasey-bound carriageway of the Kingsway Tunnel on Merseyside has been closed after a head-on crash.
A BMW and a Rover collided just before 0300 BST in a contraflow lane.
A 19-year-old woman from Ellesmere Port, a passenger in the back of the Rover, suffered head injuries and is in a serious condition in hospital.
The BMW driver, 69, suffered minor injuries, while a man, 45, driving the Rover and a second female passenger, 20, had cuts and bruises.
The driver of the BMW, from Pensby in Wirral, remains in hospital as a precaution.
The Rover driver and other passenger were also taken to hospital but have since been released, police said.
Police have set up a contraflow system on the Liverpool-bound carriageway - which was not affected by the crash - so traffic can travel in both directions.
They have advised motorists to avoid using the tunnel as traffic is heavy in the area.
Police are investigating the cause of the accident.
A Merseyside Police spokeswoman said: "The collision took place while the Wallasey to Liverpool side of the tunnel was closed for maintenance, requiring traffic to travel in both directions along contraflow lanes in the Wallasey-bound tube.
"This was not a case of a motorist driving down one of the tubes in the wrong direction."