First Hull Trains run limited service to London
Disruption to a train service between Hull and London will continue until Thursday, the operator says.
First Hull Trains, which runs six services a day, cancelled a number of services on Tuesday due to "unrelated operational infrastructure problems".
Three other scheduled services are running with a restricted timetable. Some services were affected on Monday.
The train company is advising passengers to check with National Rail for the latest information.
Two trains leaving East Yorkshire at 8:25 and 17:10 and the 11:48 GMT from London were cancelled on Tuesday morning.
A number of passengers affected by the timetable issues raised their frustrations on Twitter.
Paul Murphy tweeted: "#Hulltrains cancel 8:20 to Kings X this morning. Their offer to get you to London? 8:52 to Leeds and get a train from there. #notgoodenough".
A spokesman for First Hull Trains said: "More than 75% of our services will be running normally. Where there are alterations to our usual timetable, there will be connections to other services and First Hull Trains tickets will be valid.
"Journey times may be extended by 20 to 30 minutes on a small number of services.
"We are sorry that peoples' journeys may be disrupted, but the vast majority of people will be unaffected and our timetable will return to normal in the next few days."
In June, a £4.5m refurbishment took place, with carriages refreshed and engineering and maintenance works carried out, replacing wheels.
Last year chief executive Cath Bellamy apologised to commuters after weeks of disruption to services due to major electrical problems.
First Hull Trains said it carried approximately 750,000 passengers each year and runs 90 services a week to and from London.