Updated 3.47pm: Christchurch police are hunting a man who robbed a local TAB this morning.

A southern communications spokesman says the man entered the Papanui street bar in Merivale around 11:30.

He arrived in a red Ford Falcon,before threatening staff with a firearm and taking off with an undisclosed sum of cash.

No-one was hurt in the robbery.

Detectives are still working on a description of the man, and are asking anyone who's seen the 80's style flatbed ute to contact Christchurch police.