The incident unfolded while the woman was sitting along an embankment of the lake (pictured), 4km south of the CBD, at about 11.15pm on Friday night

A man has been charged after a woman he didn’t know was sexually assaulted in a horror attack at Albert Park Lake in Melbourne.

The incident unfolded while the woman was sitting along an embankment of the lake, 4km south of the CBD, at about 11.15pm.

Victoria Police believe the woman was approached by a 42-year-old man, who was unknown to her, before she was allegedly physically and sexually assaulted.

The incident unfolded while the woman was sitting along an embankment of the lake (pictured), 4km south of the CBD, at about 11.15pm on Friday night

The incident unfolded while the woman was sitting along an embankment of the lake (pictured), 4km south of the CBD, at about 11.15pm on Friday night

The incident unfolded while the woman was sitting along an embankment of the lake (pictured), 4km south of the CBD, at about 11.15pm on Friday night

The woman was able to run from the man, who allegedly chased after her, before she sought assistance from passers-by.

The man was later arrested and charged with sexual assault, sexual assault by compelling sexual touching, assault with intent to commit a sexual assault, common law assault and commit an indictable offence while on bail.

He has been held over to appear before Melbourne Magistrates’ Court