The weapons, which are illegal in Serbia, emit sound waves which can trigger sharp ear pain, disorientation, eardrum ruptures or even irreversible hearing damage.
A proposed lithium mine in Serbia is spurring protests over its potential impact on the environment. The mineral is in high demand because it’s crucial for the batteries that run electric vehicles.
Officials and state-controlled media have launched a major campaign against the rally, comparing it to the uprising in Ukraine that led to the fall of that country's then pro-Russia president in 2013.
Kosovo's prime minister on Sunday said one police officer was killed and another wounded in an attack he blamed on support from neighboring Serbia, increasing tensions between the two former war foes.
The government declared a one-month amnesty period for citizens to surrender unregistered weapons as part of a crackdown on guns following the two shootings this month that left 17 people dead.
Many chanted slogans decrying Serbia's president, whom they blame for creating an atmosphere of hopelessness and division they say indirectly led to the two mass shootings that killed 17.
Serbian police said they have arrested a suspect in a shooting attack that killed at least eight and wounded 14, the nation's second such mass shooting in two days.
A teenager is in custody after opening fire at a school with his father's gun, police say. The boy called police himself after the shooting and had a list of children he wanted to kill.
Brazilians who voted against President Jair Bolsonaro are torn about sporting the yellow soccer jersey after the far-right leader and his supporters adopted the shirt.
Some 5,000 refugees and migrants are in Serbia, trying to reach European Union countries. With EU leaders fearing an influx of refugees, "Serbia is in a difficult position," says a refugees' advocate.
Protesters gathered hours after an announcement that a curfew would be reinstated. Now President Aleksandar Vučić says it "probably" won't happen — despite an "alarming" surge in cases.
Djokovic, the world's No. 1-ranked men's tennis player, has previously voiced concerns about the possibility of restrictions at future tennis events due to the coronavirus.
