Football Australia (FA) has launched an investigation into the violent pitch invasion that left a player injured during the abandoned A-League derby between Melbourne Victory and Melbourne City.

City goalkeeper Tom Glover was left bloodied after being struck in the face by a metal bucket as fans from the Victory end stormed onto the AAMI Park pitch on Saturday.

Referee Alex King also suffered a cut to his head and was engulfed by fans at the 20-minute mark as City led 1-0, while a camera operator was struck in the head by a flare earlier in the match.