The man entered the home and sexually assaulted the woman at 1.45am on Saturday.

An intruder broke into a woman's Hamilton home while she was sleeping and sexually assaulted her.

The attack took place at a home near the Dinsdale shopping centre at 1.45am on Saturday.

Hamilton CIB Detective Senior Sergeant Mark Greene said the man was not known to the woman.

He then sexually assaulted the woman, he said.

The man then ran from the address.

Police were called, but a police dog unit was unable to find him.

He was described as 183cm tall, with wide shoulders, and wearing a white or tan-coloured T-shirt and a beanie.

It's possible he had a bicycle.

Police said the victim is being supported by police.

Anyone who may have seen anything or anyone unusual in the Dinsdale area in the early hours of Saturday, or has information which may help, is asked to contact Hamilton police on (07) 858 6200.