Passengers have been warned to avoid peak-time rail services between King's Lynn and London today as delays caused by overrun engineering works continue to hamper services.

Network Rail said it had been commissioning new signalling on the route between Alexandra Palace and Finsbury Park over the Bank Holiday weekend but that it had encountered issues with the signalling system.

That meant some First Capital Connect (FCC) trains from King's Lynn to King's Cross were cancelled, with an emergency timetable put in place for the rest of the day.

FCC said it has lifted evening peak restrictions and that standard class customers could use first class accommodation. It has also added some extra peak trains to areas not as badly affected, such as Cambridge.

However a statement released a short time ago said: 'Services during the evening are expected to be extremely busy and we strongly advise customers to travel outside peak time if at all possible.'

The statement added that FCC expected to be operating a full timetable tomorrow.

Earlier a statement released by Network Rail said that engineers had overcome many of the issues encountered and would work very hard to restore a full service as soon as possible.

Phil Verster, Network Rail route managing director, said: 'We apologise to passengers for the significant disruption caused to their journey today. We are working closely with FCC to restore a full service by tomorrow.'

Jackie Townsend, operations director at FCC, added: 'We are running a back-up timetable, which is a reduced yet reliable service based on a published timetable.

'This back up timetable will remain in place for the entire day. We are keeping our customers updated with travel advice on our website, through our twitter service and all other available channels.

'Once again we apologise to passengers who have been inconvenienced today, and look forward to running a full timetable tomorrow.'

The services leaving King's Lynn at 6.51am, 7.25am, 7.55am, 8.27am, 8.59am and 9.59am today were all cancelled.

FCC tickets are being accepted on Greater Anglia and East Coast services, as well as on London buses in zones one to six and the London Underground. Trains from King's Lynn to Cambridge have been running as normal.

Greater Anglia's 6.50am, 7.32am and 8.47am Great Yarmouth to Norwich services were also cancelled because of train faults, as was the Norwich to Great Yarmouth service scheduled for 8.09am.

The 9.45am from Norwich to Sheringham and the 10.46am Sheringham to Norwich were also cancelled.

How have the delays affected you? Leave your comment below or email andrew.papworth@archant.co.uk