A train operator which runs services across northern England and into Scotland has issued a “do not travel” alert as a “system issue” is causing major disruption to its network.
TransPennine Express (TPE), which is owned by FirstGroup, has suffered problems for several months because of staffing issues.
The company said on Wednesday there was a high level of unplanned cancellations and disruption due to a “significant” issue with the rostering system.
It admitted that this will have a big impact on customers and has been apologised.
The operator has advised them not to travel on TPE and to use alternative transport.
Company spokeswoman Kathryn O’Brien said: “Due to a significant rostering system issue, today we are experiencing a high level of unplanned cancellations and disruption across our network.
“We know this will have caused a significant impact on customers traveling with us today and sincerely apologise for any disruption.”
She added: “We are working hard internally and with our system provider to resolve the situation as soon as possible.
“We are doing everything we can to keep customers on the move, but while problems persist, we advise customers not to travel and to seek alternative means of transportation.”
The company’s routes include Liverpool to Edinburgh via Manchester, and Liverpool to Glasgow.
The operator has previously blamed a combination of problems, such as high levels of train crew sickness and a training backlog, for causing prolonged disruption.
It has also been hit by workers not volunteering to pay overtime on rest days and infrastructure faults.
TPE workers who are members of the Rail, Maritime and Transport union (RMT) and Aslef are repeatedly struck in long-running disputes.
Anthony Smith, chief executive of watchdog Transport Focus, told the Commons’ Transport Select Committee earlier this month “the industrial relations issues have been very corrosive and have clearly undermined (TPE’s) ability to provide a reliable service”.