Tens of thousands of people flocked to the Serbian city of Novi Sad to commemorate the second anniversary of the tragic incident - the collapse of the roof of a train station in which 16 people were killed - and the riots that followed against the government led by former President Aleksandar Vucic, which ended with his defeat in the elections last week.

Tens of thousands of people flocked to the Serbian city of Novi Sad to commemorate the second anniversary of the tragic incident - the collapse of the roof of a train station in which 16 people were killed - and the riots that followed against the government led by former President Aleksandar Vucic, which ended with his defeat in the elections last week.