Qld detectives are investigating the suspicious death of a man whose body was found at a Toowoomba pub.

Queensland police are treating the death of a man whose body was found at the bottom of a set of stairs in a Toowoomba pub as suspicious.

Officers were called to the Drayton Tavern on the outskirts of Toowoomba, on the Darling Downs, about 7.30am on Friday.

The man, who had suffered facial injuries, was found at the rear of the premises.

“That male person, who appears to be a middle aged male, was located at the bottom of a set of high-set stairs,” Detective Acting Inspector Paul Hart said.

A crime scene has been established and police are treating the death as suspicious until the man’s cause of death has been established.

Detectives have gathered CCTV footage from neighbouring businesses.