A knife attack early on Saturday in the Gare de Lyon rail station in Paris left three people wounded, police said.
Police said they had arrested the suspected attacker.
Two of the victims suffered light wounds, while the third was more seriously hurt but was not in a life-threatening situation, police added.
The suspected assailant's motive was not immediately clear.

Trump says Iran really wants to make a deal with the US
Malaysia bars under-16s from signing up for social media
Kuwaiti forces deal with missile, drone attacks on Monday
US says it struck Iranian drone command sites at weekend
