If you are travelling between Clapham Junction and East Croydon station this afternoon you are in for some huge delays.

Southern Rail have said that due to a signalling problem that needs to be investigated between Clapham Junction and East Croydon, all lines are blocked.

Worse still is that major delays and cancellations are expected as a result.

"Trains between these stations may be cancelled, delayed by up to 45 minutes or revised," a statement on Southern's website said.

The disruption is expected until 3pm, but could go on for longer.