Israel’s government has ordered thousands of African migrants to leave the country within 90 days or face arrest. The plan was announced as Israeli Prime Minister Benjamin Netanyahu called the migrants “infiltrators” during a Cabinet meeting Wednesday.

Prime Minister Benjamin Netanyahu: “The infiltrators have a simple choice: cooperate with us and leave voluntarily, respectfully, humanely and legally, or we will have to use the many other tools at our disposal, which are also according to law. I hope that they will choose to cooperate with us.”

Most of the estimated 40,000 migrants in Israel are refugees from Eritrea and Sudan fleeing war and persecution, although Israel considers them economic migrants.