A storm at the Pukkelpop Festival in Hasselt, Belgium, has led to the collapse of a stage and the death of four people according to Belgian media. Reports suggest the Chateau Stage was severely damaged by trees which fell during torrential rain and gale force winds. Different media outlets are suggesting that anywhere from 40 to 70 people were injured.

The Smith Westerns were about to play when the incident occured. A Tweet from the band read: "Stage collapsed max almost got crushed by the tress, I hope pukkelpop has insurance bc all our shit is broke." The band followed up this Tweet with another saying: "Praying no-one got hurt."

30 Seconds To Mars frontman Jared Leto took to Twitter to say: "CRAZY STORM AT PUKKELPOP IN BELGIUM – NOT SURE WE WILL BE ABLE TO GO ON STAGE – STAY TUNED. SAFETY FIRST."

This comes less than a week after a stage collapsed at the State Fair in Indiana which resulted in several deaths.

Last years Pukkelpop festival saw the death of Charles Haddon, frontman of British electro-pop band Ou Est Le Swimming Pool who jumped to his death from a telecommunications mast. Michael Been, the 60-year-old member of The Call also died from a heart attack at the 2010 festival.

See the video below for footage of the aftermatch of the collapse and the storm which led to the disaster in Belgium.

More as this story develops.