Passengers may be affected by delays between Croydon and Surrey.
Signalling problems may cause delays for commuters this between Redhill and Purley this morning.
On its twitter page Southern Rail said that services could be delayed by up to 30 minutes.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article