Because of low wages, poor working conditions, long shifts, arbitrary transfers, insults, and abuses.
They also demanded the intensification of trade unions in this sector.
Serbia's trade unions offered their support and solidarity to the workers.
McDonald's decided to temporarily close all restaurants in Russia and pause all operations in the market.
The burger giant said it would continue paying its 62,000 McDonald's employees in Russia.
Many corporations have ceased operations in the country to protest the Ukraine invasion.
On March 8, all imports and exports suspended products into and out of Russia.
And that it will not invest any further capital into the country.