'Ecstasy' pills laced with ketamine are thought to be behind one woman’s death and two men going to hospital in London in the last week.

A woman died on August 28 after a night out at Crystals club in Lewisham, South London with her male friend, who was also rushed to hospital. He has since been discharged.

Orange rectangular pills with no markings were seized from a house in Knights Hill, West Norwood where the woman was taken ill, with police analysis finding they contained MDMA and ketamine.

A 17-year-old boy who is believed to have taken the same pills, was also taken ill at Electric Brixton on September 3 and is currently in a critical condition in hospital.

Police say they suspect a number of people felt the affects of the same pills at the event but left without seeking medical attention.

All three people are Vietnamese nationals and a warning has been issued to the Vietnamese community over the pills.

Police have issued a number of warnings over different types of pills this year including pink teddy bears and IKEA pills.

[Via: the Independent]

Louis Anderson-Rich is Mixmag's Digital Intern. Follow him on Twitter