Gun held to woman's head in Qld mugging

A gunman in a balaclava crash-tackled and robbed a young woman as she walked home from a Brisbane bus stop.

The 19-year-old had a gun held to her head after she was pushed to the ground as she left the Forest Lake bus stop on Thursday night.

The gunman stole her wallet and mobile phone and handed them to two accomplices, with the trio fleeing on foot. They remain on the run.