PARIS – Three people were injured in a knife attack in Paris on Monday, and a male suspect was arrested.

The attack occurred at around 11:30 am local time in northwestern Paris, where a man armed with two kitchen knives attacked passersby on the street. The victims received medical treatment, with two of them in critical condition, according to French media reports.

The suspect was apprehended at the scene by an off-duty police officer. He had provided "only a self-reported identity" and was making "incoherent statements," French Interior Minister Laurent Nunez told the media.

Nunez urged "great caution regarding the motives behind this extremely violent act."

France's National Anti-Terrorism Prosecutor's Office (PNAT) is monitoring the situation, according to media reports.