Serbian opposition demonstrators broke windows at Belgrade's town hall Sunday during protests over alleged electoral fraud, and police responded with pepper spray, an AFP reporter saw.
Demonstrators used flagpoles, rocks and eggs to break the windows of the capital's administrative building and tried to storm it, but were quickly repelled by police.
Police with shields were stationed at the main entrance to the municipal building, according to AFP reporters.
Around 10pm local time, police dispersed the crowd by pushing them back. No information regarding arrests was immediately available.
Serbia held parliamentary and local elections December 17, in which President Aleksandar Vucic's party said it had secured a commanding victory.
But a team of international observers – including representatives from the Organization for Security and Co-operation in Europe (OSCE) – report "irregularities", including "vote buying" and "ballot box stuffing".
The allegations sparked protests in front of Serbia's electoral commission building that lasted for days, and seven members of the main opposition camp – united under banner "Serbia Against Violence" – began a hunger strike aiming at annulling the results.
Vucic said that the state "will be able" to arrest and bring to justice those responsible for the incidents in front of the town hall.
"Scenes are dramatic because we are not used to someone breaking windows," Vucic told pro-government Pink TV in a special address, Beta news agency reported.
"But no revolution is taking place, and they won't succeed."
In a statement, Serbia's interior ministry urged the demonstrators to refrain from violence.
It added that the police had warned representatives of the main opposition camp before the elections that they had intelligence that violent demonstrations and breaking into the institutional buildings had been planned.
The police added that at that time opposition leaders had "guaranteed that no such events will happen", the statement said.