Police in Launceston are investigating an armed robbery in Youngtown yesterday evening, and are appealing to the public for information.

A business on Hobart Road was robbed about 7:55pm by a man reportedly in possession of a pistol.

The man was wearing a dark motorcycle helmet and stole a small amount of cash.

He was last seen running along Highgate Street, Youngtown. No one was physically injured during the incident.

Anyone who observed a man in the area of Hobart Road and Highgate Street at around 8pm yesterday, wearing a motorcycle helmet or riding a motorcycle at speed, is urged to contact Police on 131 444 or Crime Stoppers on 1800 333 000 or at crimestopperstas.com.au.