Explosions took place at two Russian airbases on Monday, amid rumours that Ukraine is targeting Russian long-range bombers.
Three people were reportedly killed and six injured after a fuel tanker exploded at a Russian airfield near the city of Ryazan, southeast of Moscow.
Another blast occurred in Russia’s Saratov region along the Volga river, far from the frontlines.
Saratov regional governor Roman Busargin said there was no damage to civilian facilities and added that the authorities are checking whether there have been any incidents at military facilities. The cause of the two explosions remains unclear.
Kremlin spokesman Dmitry Peskov said simply that the president was being regularly informed about ongoing developments.
Russian media has reported that Ukraine had been developing munitions that would allow it to target Russian airbases holding long-range weapons.
In recent weeks, Russia has been pounding Ukrainian infrastructure — including power plants — with military strikes.
Air raid sirens blared in the capital Kyiv and across the whole country amid reports that Russia had unleashed a new barrage of missiles. There were no immediate reports of any damage or casualties.
Intense fighting has also raged on the ground in eastern Ukraine, notably around the town of Bakhmut.
Russia's defence ministry said its troops were conducting successful operations and had pushed back Ukrainian attacks.
Ukraine president Volodymyr Zelenskyy said Kyiv's forces were holding positions along the front line in the Donetsk region.
Russian forces have also been digging in near the southern city of Kherson, which was recaptured by Ukrainian forces last month after an eight-month occupation.
The commander of Ukrainian ground forces said Russia’s
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