Stern action should be taken against the organisers of the Future Music Festival Asia (FMFA) 2014 if it is proven they failed to prevent drug and alcohol abuse during the event, said Home Minister Datuk Seri Dr Ahmad Zahid Hamidi.

He said the police were now working with the Malaysian Stadium Corporation and the local authorities plus conducting a thorough investigation in the case of drug abuse at the Bukit Jalil Stadium which resulted in six deaths.

"The organiser should be responsible and they should observe the conditions given. The audience cannot bring in drugs and alcohol, and that was why the Inspector General of Police Tan Sri Khalid Abu Bakar called me on the third night to get permission for the cancellation and I ordered it to be cancelled.

"We leave it to the police to take action, together with the local council and the stadium authority which rented out the premise to the organisers," he told reporters after attending a dinner by the National Anti-Drug Agency here on Tuesday.

He was commenting on the drug abuse case which caused six deaths, including three women, aged 19 to 18, during the FMFA 2014 concert early Saturday morning.

Ahmad Zahid said the police were still trying to determine the origin of the drugs, believed to be new to Malaysia, and the culprits who distributed it.