At least 100,000 people have converged in Belgrade for a massive rally in the Serbian capital seen as a culmination of months-long protests against populist President Aleksandar Vucic.

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.

Hundreds of thousands of people descended on Serbia's capital on Saturday to protest over the deaths of 15 people in a railway station collapse. While the government put attendance at 107,000 across Belgrade, an independent monitor said 325,000 - if not more - had gathered, making it Serbia's largest protest ever.