U.S. slaps sanctions on four militants including Islamic state backers

WASHINGTON (Reuters) - The United States said on Monday it had imposed sanctions on four people affiliated with Islamic State and another militant group, including two Russian nationals and a Briton.

The U.S. Treasury Department said three Islamic State supporters and a member of the so-called Caucasus Emirate were designated as foreign terrorists. The designations allow the U.S. government to freeze their assets and bars U.S. citizens from dealing with them.