A car has flipped on its side at the Wallasey Tunnel toll booths.
The accident, involving a Range Rover, is thought to have happened just before 4.30pm on Wednesday.
No-one was injured.
Commuters were told to expect delays travelling from Liverpool to Wirral and are being asked to use the Birkenhead tunnel.
Potential delays heading through Wallasey tunnel from Lpool tonight due to vehicle incident. Consider using Birkenhead tunnel #trackrenewal— Merseytravel (@Merseytravel) February 8, 2017