There’s fears a blood-soaked man found naked in Carlisle was allegedly tortured before he collapsed on the street last night.

Witnesses told 7NEWS the naked man yelled for help before he collapsed at the intersection of Orrong Road and Wright Street around 8.30pm.

“I heard someone call ‘help me, help me, help me, you know?” witness Abdullah Alnaqi told 7NEWS.

“I heard it.”

“Someone was just calling out my driveway ‘I’ve been tortured’,” witness Matthew Burkett added.

Camera Icon Forensic police at the scene. Credit: 7NEWS

“The guy was naked and had cuts all over him and there was blood coming off him everywhere.”

Security camera footage shows two men leave an apartment block before the injured man makes his way down Marchamley Place, desperately knocking on doors begging for help.

Police confirmed the man received his injuries at a Marchemley Place residence, where 7NEWS cameras found blood spatters up three flights of stairs.

Neighbours also told 7NEWS they heard a man yell “Please let me go, I just want to go home” shortly before the man’s naked stumble.

Police raided the Marchemley Place apartment on Saturday but there was no one home at the time.

The man, who is aged in his 40s, was taken to Royal Perth Hospital where he has undergone surgery.

“The man had several injuries, consistent with being attacked with a bladed weapon,” a police spokesperson said.

Police have appealed for anyone with information or who saw or heard anything suspicious in the Marchamley Place area between 7.30pm and 9pm, is asked to call Crime Stoppers on 1800 333 000 or report the information online at www.crimestopperswa.com.au. Callers can remain anonymous.