A skateboard found on the railway tracks at Surrey Quays is causing significant delays for commuters travelling through to south London this evening.

National Rail says the obstruction has blocked all lines throughout Surrey Quays and London Overground lines are now currently suspended in certain areas.

There is currently no service between Highbury and Islington and Dalston Junction, between Surrey Quays and New Cross, and between Surrey Quays and Clapham Junction, according to London Overground.

There are also severe delays between Dalston Junction and West Croydon and Crystal Palace.

National Rail says the disruption is expected to last until 10pm tonight (December 10).

Rail passengers are advised to use their tickets on alternative services and for people to check before they travel.