Horrific moment man attacks woman from behind drags her to ground

This is the shocking moment that an attacker stalked a young woman before pouncing on her and forcing her to the ground in an attempted rape.
The man followed the woman off the EL2 bus in Dagenham, East London, and walked behind her on the road before getting hold of her and pushing her over.
He then removed his jeans, exposing himself, before the 22-year-old woman managed to punch him in the stomach and shouted for help.
A driver in a passing vehicle then stopped and phoned police, before the suspect ran off towards Wood Lane during the incident on the evening of March 6.
Scotland Yard revealed today how local CCTV caught the attack and cameras on the bus pictured the suspect before he got off at about 6.20pm.
The white man has been described as in his 30s with fair hair and a short brown beard, wearing a grey top with a white shirt underneath and blue jeans.
Officers are appealing to identify the suspect so they can speak to him in connection with their investigation.
Detective Constable Matt James, from the sexual offences, exploitation and child abuse command, said: 'The woman is very shaken from her ordeal.
'She was able to shout for help and use self-defence to flee from her attacker.
'We are keen to identify the man in the CCTV footage so we can speak to him about the incident. We would also urge anyone who witnessed the incident to contact us.'
Anyone with information or any witnesses are urged to call police on 101 or by tweeting at @MetCC. There have been no arrests and enquiries continue.