Two revellers who were admitted to Newham University Hospital after taking potentially lethal ecstasy tablets at a Newham warehouse party have been discharged.
One person still remains in hospital following the party in Hillcroft Road, Beckton on Friday.
Police issued an urgent health warning over the weekend warning people not to take drugs which were bought at the party.
Anyone with information about the sale of illegal drugs should call police on 101 or call Crimestoppers anonymously on 0800 555 111.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here