Detectives are hunting for a man after three teenagers were sexually assaulted at a shopping centre in London.

Police have released an image of a man wanted for questioning over the incidents which took place at Westfield Stratford on three separate days in July last year.

In the first incident on 7 July the suspect followed a 15-year-old girl around the shopping centre before sexually assaulting her over her clothing.

The following day, on 8 July, he again followed a 15-year-old girl before approaching her and indecently touching her over her clothing.

During the third offence on 21 July the suspect followed an 18-year-old woman around the shopping centre before sexually assaulting her over her clothing.

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None of the victims required medical treatment but were distressed at being targeted, followed and sexually assaulted.

DC Paul Newton, from Newham police, who is leading the investigation, urged anyone who recognises the man or has also been a victim to get in touch.

He said: “This was a hideous set of sexual assaults on young girls out enjoying a day in the shopping centre.

“The suspect has deliberately targeted women alone and has gone to some length to pursue them.

“If you know who he is or have also been a victim, I would urge you to get in touch.”

Anyone with information about the identity of the man pictured is asked to call police on 07564 613 966 or Crimestoppers anonymously on 0800 555 111.