A knife-wielding man is being sought out by police after he allegedly robbed a variety store.

London police say the man walked in the store at 122 Wharncliffe Road South on Wednesday around 10:30 p.m. Police say he demanded money and was carrying a knife.

The man fled the scene with an undisclosed amount of cash.

The suspect is described as caucasian about 25-35 years of age with a heavy build, around 200 lbs.

He was spotted wearing a beige jacket with a hood pulled over a baseball cap, wearing black jogging pants, sunglasses and orange work-style gloves. He also had a light coloured goatee.

No one sustained any injuries during the robbery. Police are encouraging anyone with information to contact them.