State Department

"Those responsible for these atrocities must be held accountable," Secretary of State Rex Tillerson said in a statement Wednesday. Targeted sanctions against Myanmar are a possibility.

The Trump administration is increasingly using economic sanctions to try to influence behavior in North Korea, Venezuela and Russia. But the strategy doesn't always work — and can backfire.

The president blames the so-called diversity visa program sponsored by the New York Democrat for allowing an accused terrorist into the country.

The move follows reports in August that U.S. diplomats in Havana had been subjected to mysterious "sonic" attacks that led to hearing loss, headaches and other health problems.

The Vatican says the State Department alerted it last month that one of its diplomats may have broken a law "relating to child pornography images." The priest in question is now in Vatican City.

The State Department declaration requires closures in San Francisco, New York and Washington, D.C., in retaliation for a Kremlin order expelling 755 U.S. diplomatic staff. The deadline is Saturday.

Investigators are probing why staff at the U.S. Embassy in Havana have experienced symptoms including hearing loss. Some experts think it could have been accidentally caused by surveillance equipment.

The department has updated its warnings about the Mexican states that are home to Cancun and Los Cabos, citing rising homicide rates.

The move is the latest in a tit-for-tat between Washington and Moscow triggered by U.S. sanctions on Russia for its interference in the 2016 U.S. election.

The State Department says several U.S. State Department officials in Cuba have developed strange medical symptoms. Reports suggest they may have been caused by a covert sonic weapon.