PODGORICA, Montenegro (AP) — The U.S. embassy in the Montenegrin capital of Podgorica has reopened a day after an ex-Yugoslav soldier hurled a hand grenade into the compound and then killed himself with another one.

The embassy said Friday on Twitter it's "open for business as usual following yesterday's incident."

The blast around midnight Wednesday created a crater in the embassy's yard but injured no one. Police are investigating possible motives and whether the attacker acted alone.

The suspect has been identified as Dalibor Jaukovic, who served in the Yugoslav military during the 1999 NATO bombing of Serbia. He was reportedly opposed to Montenegro's membership in NATO.

Montenegro and Serbia were part of Yugoslavia during the NATO bombing. Montenegro split from Serbia in 2006 and joined NATO last year.