Elderly woman, teen charged over WA riot

A 71-year-old woman and a 15-year-old girl are among three females charged over a mass brawl south of Perth.

Dozens of people, believed to be members of two warring families, took part in the fracas at a Mandurah recreation centre on Tuesday night.

The trio has been charged with five offences including taking part in a riot and police say the investigation is ongoing.