Woman sexually assaulted in Brisbane

Police are hunting for a man who sexually assaulted a woman in Brisbane's southwest.

The woman was walking through an easement between Muirfield Crescent and Oakmont Avenue in Oxley at about 4pm on Friday when she was approached from behind and sexually assaulted by a man.

He's described as being Caucasian in appearance, approximately 185cm tall, of proportionate build, with a shaved head and he may have a tattoo on his inner left arm.

He was wearing a red shirt, shorts, black running shoes and carrying a blue bag.

Anyone with information is urged to contact police.