Due to signal issues at Lochwinnoch some services are being delayed and revised between Ayr, Largs, Kilwinning and Glasgow.
Scotrail said on their website
Due to a fault with the signalling system at Lochwinnoch disruption is expected until 09:45 06/12.
Impact:
Train services between Ayr and Glasgow Central may be delayed or revised.
We apologise for the delay to your journey today.