A petrol station attendant is being praised for his actions after fighting off two attackers during an attempted robbery in South Auckland.

CCTV footage of the dramatic incident shows the staffer standing outside the G.A.S [gas] service station on Ascot Avenue in Mangere on Sunday morning.

Seconds later, a man with a covered face appeared from around the corner, wielding a baseball bat.

The footage shows the staffer backing into the service station as the attacker takes a swing at him, before the worker snatches the bat out of the attacker's hands.

The staff member says he's doing okay after the attack, and police are investigating.