Efforts are under way to re-route two P&O ferries stranded at Dublin Port amid an ongoing stand-off between the company and the Port of Liverpool.
The impasse arose on Thursday when Peel Ports, the owner of the Mersey Docks and Harbour Company, prevented a Dublin-bound P&O ferry leaving the Port of Liverpool over a £600,000 payment.
On this side of the Irish Sea, two freight ferries - one owned by P&O and the other chartered by the company - were unable to set sail for Liverpool because of the row.
The P&O-owned vessel in Dublin - the Norbank - was fully loaded and ready to depart when the incident unfolded in Liverpool.