One police officer was injured during the arrests
It's reported three women have been arrested after a car filled with gas canisters was left near Notre Dame Cathedral in Paris.
The discovery last Saturday night triggered a counter-terrorism inquiry.
French media are reporting that a police officer was injured during the arrests to the south east of the capital.
Two people - including the car's owner - have already been held by police.
BREAKING: French counterterror police arrest 3 women in Boussy-Saint-Antoine, south-east of Paris. 1 women stabbed an officer with a knife— Lisa Daftari (@LisaDaftari) September 8, 2016