POLICE are appealing for witnesses in relation to an armed robbery in Scott Street, Dandenong, last week.

About 10.40pm on 14 January two men emerged from a cream coloured Ford Laser and approached a group of three men.

They struck one of the men, who was wearing a helmet and seated on a green motorcycle.

The impact caused the man, 38, to fall off his bike and onto the ground.

Police said one of the offenders jumped on top of the man, produced a knife and demanded money.

He then stole the man’s motorcycle and drove west up Scott Street.

The second offender followed.

Police said the 38-year-old man, from Bayswater, was not injured.

Anyone with information is asked to contact Crime Stoppers on 1800 333 000.