The Moldovan Foreign Ministry has summoned Russian Ambassador to Chisinau Farit Mukhamedshin to explain Russian Deputy Prime Minister Dmitry Rogozin's announced attendance at Victory Day celebrations in the breakaway region of Transdniester.
Moldovan Foreign Minister Natalia Gherman said on May 5 she had not received official notice of Rogozin's visit for the May 9 celebrations marking the end of World War II.
Rogozin, who is President Vladimir Putin's envoy for Transdniester, said last week that he had accepted an invitation from Tiraspol to attend festivities in Transdniester.
He wrote on Twitter that "unlike in Kyiv, there will be a military parade" in Tiraspol.
Moscow-backed Transdniester declared independence from Moldova in 1990. The two sides fought a brief war in 1992 that ended when the Russian military intervened on Transdniester's side.
Transdniester's independence is not recognized by any country.
With reporting by Interfax