Rail passengers had to use a bus alternative for more than two hours on Wednesday morning after the unit on the Sudbury to Marks Tey line broke down.

The train was reported to have broken down shortly before 9am and had to be taken out of service. A replacement train had to be sent to Marks Tey, south of Colchester, from Greater Anglia’s Crown Point depot at Norwich.

It arrived in time to operate the 11.01 service from Marks Tey to Sudbury and continued for the rest of the day.

During the intervening period a bus replacement service was operated to link the stations on the line.

A spokeswoman for Greater Anglia apologised to passengers for the disruption in service and pointed out that compensation could be paid for journeys that were delayed – details of the compensation is on the company’s website.

Trains on the Sudbury line are due to be replaced by new units later this year.