Public transportation is shut down in the Serbian capital of Belgrade as tens of thousands of protesters converge to oppose Serbian President Aleksandar Vucic's government on Saturday.

Large crowds of flag-waving protesters converged after meeting up at several agreed-on protest venues in various parts of Belgrade, which was placed on high alert.

The rally was part of a nationwide anti-corruption movement that erupted after a concrete canopy collapsed at a train station in Serbia's north in November, killing 15 people.