Montenegro police on Saturday fired tear gas at nearly 5,000 protesters who had walked to the parliament, demanding snap elections and the resignation of Prime Minister, Milo Djukanovic.
According to media reports, there was no tension when the protests first started, however, it turned violent when the protesters who were passing the police cordon near the parliament building started throwing stones and fire bombs. Upon this, police fired tear gas at the demonstrators.
Interior Minister, Rasko Konjevic said that 15 police officers and 24 civilians have been injured.
Andrija Mandic, head of the Democratic Front opposition group and another protest leader, Slaven Radunovic were interrogated by the police.
"This was an evident attack on police and state property. I am leaving to the prosecutor to evaluate the offense," said Konjevic.
Milo Djukanovic has been governing the country for 20 years and he also held important positions within the government in the early 1990s when the country was a part of Yugoslavia. He won the 2012 election and became prime minister for the third time.
"More than 25 years in power would be too much even if he was Mahatma Gandhi and not this thief," Raso, a 30-year old protester, told the AFP news agency.
Montenegro is a country which is a candidate to join the EU and the government is hoping to get an invitation to join NATO.
Parliamentary elections will be held in 2016.