A teenager's been violently robbed in Poole.

Police say the 17 year old boy was chased by a group of men through Broadstone and attacked in Birkdale Road at about 10-30 on Saturday night.

It's believed he was pushed to the ground and hit on the arm with a glass bottle before having cash and his bank card stolen.

The four men were in a red hatchback with blacked-out rear windows.