The Future Music Festival in Malaysia has cancelled its final day after six died from suspected drug overdoses. Organisers have called off the third day of music event on Saturday following the death of the revellers on its first day, effectively cancelling the appearance of Pharrell Williams.

According to Malaysian police, six locals were pronounced drug upon arrival at a hospital about 2am after attending the first day of the festival. They were believed to have taken and overdosed on the drug methamphetamine before going to the concert.

Kuala Lumpur police chief Datuk Mohmad Salleh told a news conference that two Singaporean men and one Malaysian man between the ages of 19 to 27 are also in critical condition and are being treated at the University Malaya Medical Centre and the Universiti Kebangsaan Malaysia Medical Centre.

Police have also arrested 19 revellers for drug possession during the two-day event, including 12 tourists from Australia, Singapore, and Indonesia, as well as seven locals.

“The organisers of the festival are deeply saddened by the reported loss of lives on Friday 14th March. Our thoughts and prayers are with the family and friends of those affected. The health and safety of our patrons is of upmost importance to us and we are extremely devastated that circumstances such as these occurred despite the significant planning and resources in place,” the statement on the festival’s Web site reads.

Ticketholders may request a refund from the organisers for the cancelled event.

Future Music Festival has just finished its Australian leg of the tour, which commenced and concluded from March 1 to 10.