A knife-wielding man stabbed several people, including children, in southeastern France on Thursday, the French authorities said.
The interior minister, Gérald Darmanin, said on Twitter that the man had injured several people in a park in Annecy, a city of about 130,000 people in southeastern France. The extent of the injuries and the assailant’s motive were not immediately clear, nor was the age of the children he stabbed.
Mr. Darmanin said that a suspect had been arrested.
Antoine Armand, a lawmaker for the Haute-Savoie area, which includes Annecy, said on Twitter that there had been an “abominable knife attack on children in a playground” in the city.
“We know very little at this stage,” Mr. Armand said.
The local authorities said that a police operation was ongoing at the Jardins de l’Europe, a popular lakefront park in Annecy, and asked members of the public to stay away from the area.
Although terrorist attacks have receded from the headlines in France in recent years, the country is still on high alert, and the authorities say that the police and intelligence services regularly foil plots. While the motive for the stabbings on Thursday was unknown, France was struck by large-scale Islamist terrorist attacks in 2015 and in 2016, followed by a string of smaller but still deadly shootings and stabbings in subsequent years, often carried out by lone assailants.