Police have issued an arrest warrant for an 18-year-old man after four people responding to an online advertisement for a car were robbed, beaten and then forced to call friends and family for money to secure their release.

An 18-year-old man responded to a Kijiji ad for a car on July 14 and then arranged to meet the seller at an underground garage in the Jane Street and Grandravine Drive area.

Police say the man then attended the garage with three friends, where they were shown the car by the seller before being surrounded by a group of men that appeared suddenly.

A gun was then produced and the men were robbed of their belongings by the suspects, police say.

The victims were then allegedly beaten, stripped naked and threatened with a machete and the gun.

Police say the suspects then forced the victims to call friends and family for money to secure their release.

The victims managed to escape about four hour later.

Alhaji Kabba, 18, of Toronto, is wanted for robbery with a firearm, forcible confinement, extortion, assault with a weapon and aggravated assault.

Kabba is described as black, about six-foot-one, 180 lbs. with black hair and brown eyes.

Police say Kabba should be considered armed and dangerous.

Anyone with information is asked to contact police at (416) 808-1200 or Crime Stoppers anonymously at (416) 222-TIPS (8477).

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