In this Wednesday, Oct. 7, 2015 file photo, a worker at a Ukrainian gas station Volovets in western Ukraine controls a valve. The Russian state-controlled gas company is halting supplies to Ukraine, its chief executive said Wednesday, Nov. 25, 2015, less than two months after the two countries struck an EU-sponsored deal. Gazprom鈥檚 CEO Alexei Miller said Russia sent the last shipment to Ukraine at 10 a.m. local time on Wednesday and send no more because Ukraine has not paid in advance for future supplies. AP Photo
KIEV, Ukraine鈥擳ensions between Moscow and Kiev ratcheted up further Wendesday as Ukraine decided to stop buying any more gas from Russia and closed its airspace to its giant eastern neighbors鈥� airlines.
Ukraine on Wednesday banned all Russian airlines from crossing its airspace聽in the latest escalation between the two neighbors 19 months into the separatist war in the east of the former Soviet state.
The announcement by Kiev鈥檚 pro-Western government came only moments after Russia announced plans to halt gas shipments to energy-dependent Ukraine starting Thursday.
Ukrainian Prime Minister Arseniy Yatsenyuk told a televised cabinet meeting that the latest ban was justified because 鈥淩ussia might use Ukrainian airspace to stage provocations.鈥�
鈥淭his is an issue of our country鈥檚 national security鈥攁 response to the Russian Federation and its aggressive actions.鈥�
Ukraine and its Western allies accuse Moscow of orchestrating and supporting the pro-Russian revolt in reprisal for last year鈥檚 ouster of Kiev鈥檚 Kremlin-backed president and the new government鈥檚 decision to align itself with the West.
Kiev on October 25 barred most Russian airlines from flying into Ukraine鈥攁 decision that drew immediate reciprocal measures by Moscow.
But President Petro Poroshenko鈥檚 government had at the time allowed Russian airlines to cross Ukrainian airspace to other destination.
Yatsenyuk said the new decision came 鈥渋n part as result of the escalation of the military and geopolitical situation.鈥�
A recent upsurge in fighting in Ukraine鈥檚 industrial heartland has coincided with Russia鈥檚 stepped up air campaign in support of President Bashar al-Assad in Syria.
Some analysts and politicians in Kiev accuse the Kremlin using the world鈥檚 focus on Russian President Vladimir Putin鈥檚 actions in its main Middle Eastern ally as cover for launching a new phase of the Ukrainian war.
Russia denies all involvement in a conflict that has claimed the lives of more than 8,000 people鈥攖he majority of them civilians鈥攁nd plunged Moscow鈥檚 relations with the West to a post-Cold War low.
Moscow has banned the import of most Western food products to counteract financial and other sanctions imposed by Brussels and Washington in the wake of Russia鈥檚 annexation of Ukraine鈥檚 Black Sea peninsula of Crimea last year.
It has also restricted the sale in Russia of many Ukrainian goods.
Moscow now threatens to halt all Ukrainian food imports should Kiev joined a planned free trade alliance with the European Union on January 1.
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