U.S. cautions citizens in Sweden over possible attacks in retaliation for Koran burning

WASHINGTON/STOCKHOLM (Reuters) - The U.S. embassy in Sweden has warned Americans in the country of possible retaliatory attacks in response to an incident where a far-right politician burned the Koran.

"U.S. citizens are advised to use caution when going to public venues frequented by large numbers of people," said a security alert on the embassy's website posted on Sunday, warning of possible attacks by unspecified actors in response to recent incidents in Europe where the Muslim holy book was burned.