Perth CBD hit by knife attack while workers stop ‘knife-wielding’ shoplifter at IGA

Police are investigating multiple knife incidents on Wednesday, including an attack in the CBD which sent a man in his 20s to hospital.

Officers were at the scene of a serious assault at the intersection of Barrack Street and St Georges Terrace just before 5am on Wednesday.

Police say a man in his 20s was attacked by a group of people. He was taken to Royal Perth Hospital with injuries to his back, believed to be consistent with a knife wound.

Police have not laid any charges over the incident as their investigation remains ongoing.

It comes after two supermarket workers stopped an accused knife-wielding shoplifter from wreaking havoc at Willagee IGA around 3.30pm on Wednesday.

Police say two employees stopped a woman armed with a knife from stealing at the store before another man allegedly attacked the workers with pepper spray.

One witness told 7NEWS cops were “everywhere” after the incident.

“The nurse from the medical centre was down checking if anyone was hurt,” she said.

Police were seen arresting both a man and woman at the scene.

A homicide probe in Perth’s south is also underway after a man was found with a fatal stab wound on Tuesday night.

Police said they were called to a home on Port Royal Drive about 11.45pm in relation to an incident in which a man in his 30s was “seriously injured”.

He was rushed to Rockingham General Hospital but died a short time later.

Police on Wednesday night said a 46-year-old man had been taken into custody.

If anyone has any information relating to the incidents they are urged to contact crime stoppers on 1800 333 000 or online.