Serbia and Russia have agreed to jointly investigate allegations that Serbian-made arms were delivered to Ukraine after Moscow accused Belgrade of betrayal over reports Serbian-made ammunition reached Kyiv.

Serbia and Russia will jointly investigate how Serbia-made ammunition reached Ukraine, President Aleksandar Vucic said, after Moscow accused Belgrade of exporting arms to the government in Kyiv.

Russia has criticized Serbia for exporting arms to Ukraine, saying it’s a stab in the back by its traditional Slavic Balkan ally