In Pics: Thousands protest against corruption in Serbia's Belgrade

In one of Serbia's largest protests in decades, more than one lakh demonstrators filled the streets of Belgrade. Facing riot police and President Aleksandar Vucic's supporters, protesters voiced their anger over corruption and negligence. The unrest erupted after a railway station roof collapse killed 15 people, intensifying months of dissent.

A massive crowd gathered in Serbia's capital, Belgrade, marking the largest of the recent anti-corruption protests that have shaken the Balkan nation in recent months.

Protestors stretched for nearly 2 kilometers, with people filling the streets in and around parliament and the capital's main pedestrian square.

The protest erupted after 15 people were killed when a railway station roof collapsed in the city of Novi Sad in November, igniting long-simmering anger over alleged corruption and lax oversight in construction projects.

The protest on Saturday (March 15) saw over one lakh people, the interior ministry said.

The Public Assembly Archive, which tracks crowd sizes, reported a significantly larger turnout, estimating that between 275,000 and 325,000 people participated in the demonstration.

If confirmed, the estimated turnout would make Saturday's demonstration one of the largest Serbia has seen in recent years.

For weeks, student-led protesters have criss-crossed the country, holding rallies in Serbia's major cities.

Taking their anti-corruption fight beyond the cities, these demonstrators have reached rural regions and small towns that have historically backed Vucic.

An anti-government demonstrator waves a Serbian flag during a protest in Belgrade, Serbia.

A man lights a flare as students and anti-government demonstrators take part in a protest in front of the parliament building in Belgrade, Serbia.

Amid scores of Serbian flags, some waved banners calling for environmental protection, while others demanded the return of the former breakaway province of Kosovo.