An investigation into a sexual assault on a 13-year-old girl by a gang of youths has been closed. 

Four teenagers, one aged 13 and the rest aged 14, were arrested on suspicion of sexual assault in July last year after the girl was attacked in a block of flats in Essex Close and then again in Stoneydown Park, Walthamstow. 

Despite the arrests, detectives from the Sexual Offences Exploitation and Child Abuse Command continued to appeal for information about the attack, which took place between 5pm and 9pm on July 27. 

The five teenagers were subsequently re-bailed a number of times, but police have now said the suspects have all been released without any further action. 

A spokesman for Scotland Yard, added: "The case is now closed pending any further information coming to light."

High Street ward councillor and cabinet member for economic growth and high streets, Clare Coghill, urged the public to come forward at the time, saying she was "completely devastated" by the attack.

Entrances to the park in Pretoria Avenue and Blackhorse Road were taped off, with an officer guarding each entrance. 

The park, used frequently by schoolchildren, borders Stoneydown Primary School and Nursery in Pretoria Avenue and St Patrick's Catholic Primary School in Longfield Avenue.  

East London and West Essex Guardian Series:

Officer guards the Pretoria Avenue entrance to Stoneydown Park 

East London and West Essex Guardian Series:

Inside the park which is regularly used by schoolchildren in the area