A woman has fought off a would-be rapist with her car keys during an attack in Brisbane.

Police say the 28-year-old was grabbed from behind and forced to the ground on Riverview Terrace at Indooroopilly, in Brisbane's west, at 8.30 last night.

Police say a woman used her car keys to fight off an attacker in Brisbane. Credit:iStock Photo

The woman fought off her attacker by stabbing him in the face with her car keys and police are calling for anyone who knows a man with unexplained facial injuries to come forward.

AAP