A man has been bashed with a crowbar, and another threatened, in related incidents in Brisbane.

A man has been bashed with a crowbar in one of two related robberies in Brisbane.

Police are hunting for two men in a white ute who confronted the victim at West End about 1am (AEST) on Monday, bashed him with the crowbar and stole his bag.

The victim was treated at the scene for minor injuries.

The same pair has also been linked to an earlier incident at Yeronga late on Sunday.

About 10.40pm, the duo, armed with a crowbar and a knife, approached a man and demanded money. When the man refused, they left in the ute.

Both assailants are described as Caucasian and about 180cm tall.