NEW YORK, NY - APRIL 25: Max Kakacek, Colby Hewitt, Cullen Omori and Cameron Omori perform at Bowery Ballroom on April 25, 2011 in New York City. (Photo by Cory Schwartz/Getty Images) *** Local Caption *** Max Kakacek;Colby Hewitt;Cullen Omori;Cameron Omori;

Hollywood Reporter – Early reports out of Belgium and Holland Thursday are claiming that six people were killed and others injured as a tent collapsed at an annual music festival called Pukkelpop.

The BBC is now reporting four were killed, details are still emerging as to number of dead and injured.

According to Holland’s Trouw.com, one of the tents where a band was playing was blown down after a storm, resulting in chaos and injuries.

Per Belgian radio station Studio Brussel, ambulances have been in and out of the festival and the remainder of today’s festival has been canceled.

The sudden storm Thursday caused the Chateau Tent, where American band Smith Westerns played, or were about to play, to collapse. The band wrote on Twitter: “Stage collapsed max almost got crushed by the tress, I hope pukkelpop has insurance bc all our [stuff] is broke.”

A brief but fierce storm produced strong winds and large hail which brought down trees, per reports. Additionally, a sound tower beside the main stage came loose.

The annual festival’s lineup this year includes many American bands, including 30 Seconds to Mars, Foo Fighters and Rise Against.

Jared Leto tweeted that “four stages were down” and that it was “still raining” Thursday from the festival. “Be safe,” he added.

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