A teenager found dead in Woodford Green has been named as 18 year-old Luke Harwood from Havering.
His body was discovered by police near Broadmead Fields on Monday night.
Four men and a woman, who were arrested in connection with his death, are being interviewed by police.
A post-mortem examination is expected to take place today.
Police are particularly interested in hearing from anyone who saw a blue Fiat Punto in Courtland Close - or activity near the bridge in Chigwell Road (close to the Jet petrol station) - on Sunday or Monday.
More top news
On a visit to the Olympic Park, Brazilian footballing legend Pele took the time to talk about the Olympics and England's Euro 2016 demise.
Singer Rita Ora has been hospitalised after reportedly suffering from exhaustion just hours after the man who burgled her home was jailed.
The Hollywood star took residents in Merton by surprise when he touched down in a helicopter near Poplar Road.