Clashes between rival groups of protesters in Serbia flared again late Thursday, police said, as months of anti-government demonstrations boiled over into street violence this week.Anti-graft protesters again gathered in several cities across Serbia late Thursday.

Months of anti-government rallies in Serbia lapsed into violence again as supporters of President Aleksandar Vucic clashed with his opponents in three of the Balkan country’s biggest cities.

Clashes have erupted at protests in Serbia between supporters and opponents of the government. Tensions have escalated following more than nine months of persistent demonstrations against