BBC VerifyWhat we know about the train derailment in Essexpublished at 16:39 BST

16:39 BST

An image of a derailed train that has come off the tracks next to a fence in Essex.Image source, .

By James Kelly and Richard Irvine-Brown

BBC Verify is analysing images from a train derailment in Essex.

Images show a Greater Anglia train with at least one carriage that has come off the rails in Wickford, Essex.

The derailment happened near an overhead walkway between Salcott Crescent and Russell Gardens, 1km (0.7 miles) east of Wickford station.

Images also show air ambulances landing in an open space a further 800m to the east, near Meresa Crescent.

Data from the website OpenTrainTimes shows the train was a Southend to Liverpool Street train, which left Rayleigh at 14:06 but failed to reach Wickford at 14:11 as planned.

The images above and below this post have been verified.

An image of a derailed train that has come off the tracks next to a fence in Essex - image taken at a side angle.Image source, .