Russian-backed separatists in Kherson say they will hold vote on joining Russia

Russian-installed officials in the Kherson region of Ukraine said they have decided to hold a referendum on joining Russia and have urged the Kremlin to give its permission as soon as possible, the separatist head of the region said on Tuesday.

In a post on the Telegram messaging app, Vladimir Saldo, the Russian-appointed head of Kherson, said he hoped Kherson would become "a part of Russia, a fully-fledged subject of a united country."

Russian forces control around 95% of Ukraine's Kherson territory in the south of country.

Saldo did not name a date for the proposed vote.

Officials in parts of Ukraine controlled by Russian forces, including the two breakaway Russian-backed regions of the Donbas - the Donetsk and Luhansk People's Republics (DPR and LPR) - have stepped up preparations for long-discussed votes to join Russia this week in a coordinated move.

Saldo said Kherson joining Russia would "secure our region" and be a "triumph of historical justice."

"I am sure that the Russian leadership will accept the results of the referendum," he added.

The Kremlin has repeatedly said the issue is a matter for the local Russian-installed officials and citizens of the regions to decide.

Saldo's remarks echoed those made by Kremlin ally and former President Dmitry Medvedev earlier on Tuesday in which he called for the Kremlin to let the separatists join Russia.

Shortly after Saldo's announcement about plans for a vote in Kherson, the head of Russia's parliament said he would support the regions joining Russia.

"Today, we need to support the republics with which we have signed mutual assistance agreements," Russia's state Duma speaker Vyacheslav Volodin said, referring to agreements signed between Moscow and the DPR and LPR which paved the way for the Kremlin to dispatch tens of thousands of troops into Ukraine in February.