A man suspected of ramming his white van into two bus stops in the southern French city of Marseille, killing a woman, is being treated for psychological problems, officials said.

The suspect, who has not been identified by name, is 35 years old and from the Grenoble region in eastern France, a press official for police headquarters in Marseille said.

The van rammed into two bus stops in two neighbourhoods of the Mediterranean port city, killing a woman and injuring a man.

French policePolice officers block the road near one of the bus stops (Claude Paris/AP)

The suspect was arrested in Marseille’s Old Port neighbourhood.

The official said specialists were going over the van for clues about the suspect’s motives as he was being questioned.

Armed soldiers in MarseilleArmed soldiers on the scene (David Coquille via AP)

Police and forensic experts in white suits took evidence from the bus stop.

The glass walls of the bus stop where the woman was killed were shattered.