Disruptions due to Angus train derailment to continue
Network Rail have said it is not clear when services will return to normal following a train derailment in Angus.
The body responsible for Britain's railways said teams remained at the site of the incident which happened at Inverkielor at about 09:45 on Sunday.
The Rail Accident Investigation Branch is working to uncover why the front wheels of the 08:04 Edinburgh to Aberdeen service came off the tracks.
Replacement buses have been put on between Dundee and Montrose.
A network rail spokesman said they were unable to say when services would return to normal.
ScotRail and CrossCountry Trains are advising customers on their websites that disruption would last until at least 23:59 tonight. They warned travellers to allow for delays of up to 60 minutes.
British Transport Police described the incident as "a minor derailment".
None of the 36 passengers or the two crew were injured during the incident.
A spokesman for CrossCountry, who operate the 08:04 service, said: "The front wheels of the train became derailed but the train remained upright.
"A full investigation will be undertaken to determine the cause of the incident."