Supporters of Albania's Socialist Party wave their party flags and celebrate in Tirana June 25, 2013, after counting results show a clear lead of their party. Albania's Socialist opposition urged Prime Minister Sali Berisha to accept defeat on Monday after it took what appeared to be a convincing lead in an election seen as a test of the NATO country's democratic credentials. REUTERS/Arben Celi (ALBANIA - Tags: ELECTIONS POLITICS)