SA taxi driver threatened with hammer

An Adelaide taxi driver was robbed by two men who threatened him with a hammer overnight.

A passenger armed with a hammer has robbed a taxi driver in a frightening attack in Adelaide's west.

A taxi was called to a home in Findon just before 1am on Saturday when the driver was threatened with a hammer by two men.

The driver, who was not injured in the attack, handed over some cash before the men ran away.