The offices at the US Embassy in Montenegro were closed for the night late Wednesday when the attack occurred: An unidentified man threw a grenade over the compound's wall and then took his own life using a second explosive device, reports the AP. He was the only casualty, and NPR reports no motive has been disclosed, nor is it clear if the intention was to carry out a suicide attack.
A State Department rep says the building, located in the capital city of Podgorica, was not affected, with Radio Free Europe reporting the damage was limited to a crater caused by the explosive. Americans have been warned to steer clear of the embassy until further notice. The New York Times calls Montenegro "one of the world's youngest nations": It was once part of Yugoslavia and declared its independence from Serbia in 2006. (Read more Montenegro stories.)