P&O said there would be problems 'until further notice'

The berth broke last week when a support cable snapped and two more berths were taken out of action for refurbishment and safety checks.

Both P&O and SeaFrance stopped selling tickets to day trippers over the weekend because of the disruption.

SeaFrance has resumed services but they are subject to delays.

Motorway closed

Both ferry firms decided to cut services at the weekend after the Port of Calais said it was experiencing slow turnarounds because only one freight vehicle could go onto the berths at a time.

The damage is expected to disrupt ferry services throughout half term week and could go on for several weeks more.

P&O said on Monday it was just running "shuttle services" without day trippers.

Passengers are being advised to contact the ferry operators for more information.

Kent Police closed the M20 on Friday night in order to implement Operation Stack - which sees the motorway used as a lorry park for vehicles queuing to get into Dover.

The motorway was not running as normal again until Sunday morning.