U.S. President Donald Trump signed a proclamation on Wednesday banning the citizens of 12 countries from entering the United States, saying the move was needed to protect against "foreign terrorists" and other security threats.

Axar.az, citing Reuters, reports that the directive is part of an immigration crackdown Trump launched this year at the start of his second term, which has also included the deportation to El Salvador of hundreds of Venezuelans suspected of being gang members, as well as efforts to deny enrollments of some foreign students and deport others.

The countries affected by the latest travel ban are Afghanistan, Myanmar, Chad, Congo, Equatorial Guinea, Eritrea, Haiti, Iran, Libya, Somalia, Sudan and Yemen.

The entry of people from seven other countries: Burundi, Cuba, Laos, Sierra Leone, Togo, Turkmenistan and Venezuela, will be partially restricted.

"We will not allow people to enter our country who wish to do us harm," Trump said in a video posted on X. He said the list could be revised and new countries could be added.

The proclamation is effective on June 9, 2025, at 12:01 am EDT (0401 GMT). Visas issued before that date will not be revoked, the order said.