He said this in an interview with the Priamy television channel, according to an Ukrinform correspondent.
"Since the Serbs fought in Donbas, we are now pressing hard for each of them to be punished, and Serbian courts have already begun pronouncing sentences," Klimkin said.
The minister stressed that everything should be done so that no Serbian soldier could fight in Donbas.
As reported, in October 2017, Chief of the Security Service of Ukraine (SBU) Vasyl Hrytsak said that 300 Serbian citizens were fighting on the side of militants. Later, in January this year, he said that the Ukrainian side had handed over to Serbia the names of 103 Serbs who fought in eastern Ukraine.
As reported, on Tuesday, July 3, a Ukrainian delegation headed by President Petro Poroshenko is on an official visit to Serbia at the invitation of Serbian President Aleksandar Vucic.
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