Tens of thousands of protesters filled the streets of Serbia’s capital over the weekend, the culmination of more than four months of demonstrations against the government of President Aleksandar Vucic and what they see as its slow response to a deadly train station collapse in November.

Human rights groups have suggested Serbian authorities used a 'long-distance acoustic device' - but the government has denied it.

Serbia's embattled government is facing a watershed moment, analysts said Monday, after a massive student-led rally in Belgrade over endemic corruption saw the capital engulfed by a sea of demonstrators.