Hundreds of Serbian citizens, mostly students, gather to block a key intersection in central Belgrade to protest against alleged electoral fraud. The protest marks the first planned day-long blockade since the December 17 parliamentary and local elections in which President Aleksandr Vucic's party claimed it had secured a resounding victory. Serbia's main opposition coalition has alleged that ethnic Serbian voters from Bosnia were allowed to cast ballots illegally. International observers also reported irregularities and several Western nations have voiced concerns over the electoral process. IMAGES