Five people have reportedly been killed when a shooter fired on a crowd at a popular music festival in Mexico.
The shooting took place at the festival's closing party at the Blue Parrot.
Footage published on social media shows terrified festival-goers running from the nightclub, screaming "He's got a gun! He's got a gun!"
The BPM Festival runs over 10 days from January 6 to 15 in Playa Del Carmen, Mexico, and features 375 artists. The event attracts tourists from around the world, including Australia.
All festival events have now been shut down and police are investigating.
Popular Scottish DJ, Jackmaster, tweeted about the shooting, saying there were "many" wounded and urging festival attends to stay inside their hotels.
Someone has come into the club in Playa Del Carmen and opened fire. 4-5 dead and many wounded. Stay in ur fuckin hotel if you're here at BPM— JACKMASTER (@jackmaster) January 16, 2017
Australian DJ Wax Motif, whose real name is Danny Chien, has tweeted about the incident -- which, he says, "happened right in front of us".
"We ran down the beach because we saw bodies in the alleyway next to the club, then another gunman started charging down on us from up the beach," he wrote.
Gunmen opened fire at Blue Parrot in Playa Del Carmen at BPM . Hope everyone is safe and stay off the streets please 🙏🏼— Wax Motif (@WaxMotif) January 16, 2017
Me and my crew are safe. It happened right in front of us. I still can't believe that was real— Wax Motif (@WaxMotif) January 16, 2017
Guy 5m in front of us got shot. We all jumped the fence to get out and saw at least 4 bodies down on the escape. #BlueParrot— Wax Motif (@WaxMotif) January 16, 2017
We ran down the beach cos we saw bodies in the alleyway next to club then another gunman started charging down on us from up the beach— Wax Motif (@WaxMotif) January 16, 2017
We managed to find a route back to our apartment and have been letting random people take refuge at ours for the night— Wax Motif (@WaxMotif) January 16, 2017
It is not yet clear how many gunmen were involved in the attack, but reports have also emerged of a second shooting at The Jungle, a nightclub hosting another of the festival's closing parties.
Mexican authorities are yet to comment on possible causes behind the shootings.
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