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.

Thousands of protesters, mainly students, descended on Serbia's capital on Friday ahead of a planned weekend of massive anti-government rallies, many travelling hundreds of miles on foot or by bike.

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.