All trains between Aberdeen and Dundee have been cancelled due to a gas leak.
The leak was reported near Carnoustie on Wednesday evening, causing disrupted services.
The East Coast line is now currently closed between Dundee and Montrose.
Network Rail has posted a statement on Twitter to say the fault is not on the line but within close proximity.
A 50-metre exclusion zone remains in place whilst work is carried out.
Commuters are urged to check their journeys and expect disruption until around noon.
John Swinney elected Scotland's new First Minister
Campaigners call for Aberdeenshire Council to reject Hill of Fare windfarm
John Swinney announces SNP leadership bid
16°C
16°C