The chilling moment a Victorian security guard was stabbed in the neck in Friday's fatal Bourke Street terror attack has been captured on CCTV.
The harrowing CCTV footage shows the 24-year-old SecureCorp guard speaking into a two-way radio seconds before he walks out of the City Duty Free store and is confronted by a knife-wielding Hassan Khalif Shire Ali.
The attack is believed to have happened moments after Somali-born Shire Ali, 30, set fire to a ute laden with gas cylinders in the centre of Melbourne and fatally stabbed Sisto Malaspina, the co-owner of beloved Melbourne restaurant Pellegrini's Espresso Bar.
The security guard, who does not want to be identified, appears to leave the store to see what is happening outside on Bourke Street.
As he steps out onto the street he briefly looks to the left, where the ute is engulfed in a ball of flames. At that moment, Shire Ali can be seen running towards him, before lunging at him with a knife.
The footage obtained by Nine News shows Shire Ali with the knife gripped tightly in his right hand, his arm raised upwards as he repeatedly stabs the security guard in the upper body.
The security guard raises his arms up to shield his body and tries to push his attacker away, but Shire Ali continues to come at him.
Blood splatters can be seen on the marble tiles as the security guard flees from the store entrance and into a nearby corridor.
Shire Ali can be seen chasing him into the area before the footage ends.
The security guard has been described by staff at the duty free shop as a "cool dude" who was always first to help others while at his post outside the City of Melbourne building.
May, who only wanted to give her first name, said the guard always said hello and had a chat as she walked into work at the shop that shares the building.
"He was a very nice guy, very helpful. There was a bin on fire on the front last week and he put it out," she said.
"He a cool guy, I'll call him a cool dude."
May said they were very grateful that the guard had run into the side corridor rather than the shop where Shire Ali may have attacked staff.
"We are all very glad he is fine," she said.
SECUREcorp management said he was recovering well and had requested his personal details not be released.
"The officer was hurt in the line of duty and has received medical care as well as support for himself and his family through our employee assistance program," the company said.
"SECUREcorp would like to thank the first responders to the incident, for the support and assistance provided to our officer."