Woman charged with murder over body found in river

Detectives arrested a 49-year-old West Footscray woman along with a 15-year-old West Footscray boy on Tuesday afternoon.

The woman was charged with murder following a police interview and is due to face court on Wednesday.

The boy was released without charge.

Police believe the pair knew the victim, who is yet to be formally identified.

A member of the public had earlier on Sunday found a man's body in the same river close to the Footscray Wharf, but the discoveries are not linked.

The man's death is not being treated as suspicious.