Bosnia-Herzegovina overcame a 10-point deficit in the final quarter to beat Montenegro 76-70 on Friday for its first victory at the European Championship.
Also, Ukraine beat Germany 88-83 to improve to 3-0.
In Jesenice, Nihad Djedovic sank a pair of key free throws with 16 seconds remaining and added a layup to seal Bosnia's victory over its Balkan rival.
Djedovic finished with 13 points. Mirza Teletovic of the Brooklyn Nets led Bosnia with 18 points and 11 rebounds, while Nemanja Gordic added 17 points.
Bojan Dubljevic led Montenegro with 16 points, while American-born guard Tyrese Rice had 13. Rice missed three 3-point attempts in the final minute.