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

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.

Russia accused Serbia of exporting arms to Ukraine, calling it a "stab in the back" from one of Moscow’s longest-standing European allies.  The Russian Foreign Intelligence Service (SVR) issued a statement on Thursday claiming that "Serbian defence enterprises,