Commuters are being told to brace themselves for disruption on a major railway line between Glasgow and Edinburgh.

Flooding in the Winchburgh Tunnel between Edinburgh and Linlithgow is continuing to cause major delays.

Network Rail have now advised that water levels have dropped, however disruption is still expected.

Network Rail say: "Positive news from Winchburgh. Water level has dropped to a point where we can reintroduce services without speed restriction – though a residual signalling issue will slow progress slightly.

READ MORE: Trains from Glasgow to Edinburgh reduced to 5mph

"Trains will be reintroduced gradually so please follow ScotRail for latest updates."

ScotRail added: "It’s an improving picture at Winchburgh, with water levels dropping further. This means the speed restriction has been lifted. Flooding is causing a signal fault, which means trains will be delayed slightly through the area though.

READ MORE: Glasgow to Edinburgh train line shutdown is lifted in time for rush hour

"UPDATE: The signaling fault has now cleared too. We’ll restore the normal timetable in a controlled manner, to prevent further disruption. A number of our trains and crews have been left out of position – which we’re working to sort out now."