PARIS — Following the terrorist attack near Lyon, France, on Friday, and as the couture shows approach on July 5, the country’s leading fashion body, the Fédération Française de la Couture, du Prêt à Porter des Couturiers et des Créateurs de Mode, is again recommending that fashion houses adhere to the security measures set out by the government earlier this year.

France remained vigilant over the weekend after the incident at a U.S. company-owned industrial chemical plant that left one dead and two injured. The attack took place on the third day of men’s ready-to-wear season in Paris, which closed Sunday.

No one could be reached for further details at the federation, which had made security suggestions to fashion houses in January after 17 people were killed in Paris attacks at the satirical magazine Charlie Hebdo, on a police officer and at a kosher supermarket. The proposed actions concerning fashion shows included reinforcing the verification of attendee invitations, checking their bags and avoiding the buildup of crowds in entryways.

Paris has been on highest alert since January and, in an unprecedented mobilization of the country’s armed forces on domestic soil, France deployed 10,000 troops to boost security.

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The streets of Paris remained packed on Saturday and Sunday with tourists taking advantage of the warm, sunny weather, semiannual sales and visiting the city’s sites.

Meanwhile, the men’s shows remained on schedule, with no signs of stepped-up security.

The incident at the plant occurred Friday morning, when one person was decapitated and another two hurt, but the suspect was not successful in blowing up the Air Products factory. There were terrorist attacks in two other countries early that day, as well — in Tunisia and in Kuwait.

On Friday evening, France’s President François Hollande said he would raise the security alert to the highest level for three days in the southeastern region of France, where the factory occurrence took place.

Since January, there has been one more terrorist act in the country, in early February, when three members of the military were killed outside of a Jewish center in Nice.