Commuters are suffering Friday frustration as train journeys are hit by delays this morning.

First Capital Connect services on the Wimbledon loop - which connects Streatham, Tooting, Wimbledon, and Sutton with north London - have been affected by a signalling problem at Tooting.

A spokesman for the company said delays of up to 20 minutes are expected until 10am this morning. They said tickets would be accepted on other train services into London, as well as on trams and buses.