Early investigations suggest the victim of a backyard shed fire in Brisbane was a man.

A body has been discovered so badly burnt in a backyard shed behind a suburban Brisbane house, its gender is still being determined.

Other people were in the adjacent house at the time, but it’s still unknown why the body, believed to be that of a man, was in the shed.

Fire crews were alerted to the blaze at Mount Gravatt during the early hours of Thursday morning.

Early investigations suggest the victim was a male, a Queensland police spokesman said.

“It looks like he’s burnt so badly they can’t tell if he’s male or female,” he told AAP.

Police forensic investigators are still to determine the cause of the fire in Brisbane’s south-east.