wo young clubbers suspected of taking ecstasy died after separate dance music events at London's Alexandra Palace, police said. The men, aged 20 and 21, were admitted to a north London hospital on Sunday and were pronounced dead within seven hours of each other. The 21-year-old is thought to have attended an all-night party called Bass Culture, which started on Friday and continued into Saturday. The 20-year-old is believed to have attended a night called Epic, starting on Saturday night and running into Sunday. A second 20-year-old man who was also believed to have attended the event on Saturday night was admitted to hospital as well and remains in a serious but stable condition. The Metropolitan Police said the cause of the deaths and injury was yet to be established but confirmed that one line of inquiry was that the men may have taken illegal substances, possibly MDMA - the chemical name for ecstasy. They issued an urgent appeal for other clubbers to seek medical attention following the unexplained deaths. Detective Inspector Rita Tierney said: "Although it is too early to say what caused these men's health to deteriorate, we are investigating the possibility that illegal drugs may have been involved. "If you have taken what you believed to be MDMA, or any other substance, during this weekend's events at Alexandra Palace, and are now feeling unwell, I would strongly urge you to attend your nearest hospital as soon as possible."