A man who allegedly assaulted a woman near Browns Bay was last seen heading along Beechwood Rd towards Browns Bay Rd.

A woman was assaulted while jogging on Auckland's North Shore on Friday afternoon.

Detective Sergeant Laura Ellis said the woman in her 20s was left with moderate injuries after the assault on a clifftop path at the southern end of Browns Bay.

A man, about 25-years-old, approached the woman and assaulted her about 4.30pm, Ellis said.

He was described as Māori, about 1.8 metres tall, and of an overweight build.

He was wearing a dark T-shirt, trousers or jeans and a black and grey cap on with a sticker on the peak.

The man fled on foot and was last seen on Beechwood Rd heading towards Browns Bay Rd.

Ellis encouraged anyone out exercising alone to remain aware of their surroundings and to inform police if they noticed anything suspicious.

Police were asking anyone with information or dash cam footage which could assist police with its investigation to call 105, quoting file number 191108/3003.

People could also call Crimestoppers anonymously on 0800 555 111.