Additional police and military troops will be deployed in public areas all over France, said the French prime minister on Tuesday, following two instances of cars rammed into pedestrians in two cities and a separate knife attack on police officers in another .
"The best response is to continue to live peacefully with the necessary vigilance of course," French Prime Minister Manuel Valls to the radio channel Europe1. The attacks by rampaging drivers were "not linked," he added.
Valls said public places including railway stations and malls were the highest point of concern.
President Francois Hollande asked Valls to convene an emergency cabinet meeting on Tuesday to "take measures if necessary."
Last Sunday, a driver reported to be suffering from mental illness, shouting "God is great" in Arabic, injured 11 people after driving into pedestrians in the eastern city of Dijon.
In the western city of Nantes on Monday evening, a van burst into a Christmas market, injuring 10 people before the driver began stabbing himself. The city prosecutor said Tuesday that one of the victims was in a state of clinical death.
On Saturday, an attacker knifed three police officers in the town of Joue-les-Tours before he was shot dead by police.
Officials in France have stated that the three events were not terrorist attacks.