PARIS (AP) — France is temporarily reducing staff at its embassy in Iran, and it will bring some employees and their families home, a French official said Saturday. The move is the latest result of protesters’ storming of the British Embassy in Tehran and adds to the international pressure on the Iranian government.

The French diplomatic official described the decision as a preventive security measure and acknowledged it was a response to the attack on the British mission. But he emphasized that the French Embassy would remain open and declined to specify how many people would be sent home.

About 20 to 30 French people, including some with dual French-Iranian citizenship, work at the embassy, he said. Decisions about who leaves will be made on a “case-by-case basis,” the official said. He added that the repatriations could begin as early as Sunday or Monday.

The French high school in Tehran will also remain open, said the official, who spoke on the condition of anonymity.