The United States Embassy in Kabul warned people in Afghanistan the U.S. government cannot guarantee safe passage to the airport in the capital, where evacuations are underway after the Taliban takeover of a majority of the country.

“THE UNITED STATES GOVERNMENT CANNOT ENSURE SAFE PASSAGE TO THE HAMID KARZAI INTERNATIONAL AIRPORT,” the embassy said in a statement Wednesday. “U.S. government-provided flights are departing. U.S. citizens, LPRs, and their spouses and unmarried children (under age 21) should consider travelling to Hamid Karzai International Airport.”