An explosion has been caused at the US embassy in Montenegro, by an attacker who threw a device into the compound in the capital Podgorica at around midnight (23:00 GMT). The attacker later killed himself, the government announced.
Media reports have named a Serbian-born local resident as a suspect, but this is unconfirmed by authorities.
Montenegro, home to about 630,000 people, became independent in 2006 - one of several new countries formed after the dissolution of the former Yugoslavia.