Police have released CCTV footage of the second aggravated robbery in Glenfield in a week.
The robbery occurred on Wednesday night at Thirsty Liquor Glenfield on the corner of Chivalry Road and Diana Drive.
Police said the owner was sitting behind the counter when the man, armed with a long knife, threatened her with the knife and demanded money.
She complied with the offender and he fled the scene.
The offender fits the description of an offender involved in a similar aggravated robbery at the Harbour City Liquor Store on View Road in Glenfield on Sunday.