A track circuit failure at Vauxhall this morning is causing delays of up to 40 minutes for South Western Railway.

Because of the track failure, one of the lines heading away from London has been blocked while engineers work to repair the fault.

A spokesman for South Western said: "Network Rail engineers have attended and have determined that there is a requirement to replace some equipment in order to rectify the fault, this will take place after the morning peak.

"Until this time trains will be unable to stop at Platform eight at Vauxhall Station.

"This will affect suburban services that are travelling away from London Waterloo.

"Other services may still be delayed by up to 40 minutes, and some may be subject to short notice alterations."

Delays are expected until at least 2pm today.