Man with raspy voice wanted for Vic attack

A man with a limp and a raspy voice grabbed and threatened to kill a Melbourne girl in a brazen day time attack.

Police have released a digital image of the man they want to speak to over the assault of the 17-year-old in Mill Park on March 23.

It's believed the teen was walking along the bike path in Border Drive when a man began following her about 4.30pm.

When she reached parklands, he grabbed her from behind, covered her mouth and told her to be quiet.

The girl struggled and the man threatened to kill her if she did not stay quiet, but she managed to yell and the man fled.