The Trump administration is considering imposing entry restrictions at the U.S.-Mexico border to control the spread of the new coronavirus in the United States, according to two U.S. Department of Homeland Security (DHS) officials.

Mexico’s government said on Friday it had detected three cases of coronavirus infection in three men who had all recently traveled to Italy, making the country the second in Latin America to register the fast-spreading flu-like illness.

The Trump administration is also weighing possible restrictions on the entry of travelers from South Korea, Italy and Japan.