The body without life of a young man, aged 27, was found in a basin in the city centre of le Havre, Seine-Maritime.
The macabre discovery was made on Tuesday, the 1st January, at about noon.
The gendarmes arrived on the scene, have recovered the corpse.
The victim was carrying a backpack, which has allowed investigators to identify it.
Accidental falls, suicide or criminal act ? An autopsy could be performed in the coming days.