Seven people die of drug overdoses at Vietnam music festival

Five more festival goers are in comas

Commuters pass the entrance to the West Lake Water Park in Hanoi where partygoers died from drug use during electronic dance music festival 'Trip to the moon' inside the park (AFP/Getty Images)

Seven people have died of suspected drug overdoses at a music festival in Vietnam.

Five others were in comas following the event, according to the state-run Capital Police newspaper.

The music festival was attended by thousands of people and was held in a water park near Hanoi's city centre.

Police seized suspected drug substances at the scene.

The newspaper wrote that all the people who overdosed had tested positive for drugs but did not identify which substances were used.

Local officials and police officers were not available to comment on Monday.

Government data suggests that Vietnam has 220,000 drug addicts with police records.

Around 1,600 people die each year in the country from a drug overdose.

Heroin and methamphetamine are the most commonly used substances in Vietnam, with authorities noting a recent rise in the use of the latter drug.

Associated Press contributed to this report