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A week after an apparent Ukrainian attack on a Russian military base in occupied Crimea, an arms store at another military facility has been hit by a series of explosions.

Blaming "sabotage", Russian officials said a fire triggered the blasts in the Dzhankoi area, with damage to a power station and a railway.

Presidential office adviser Mykhailo Podolyak has described the latest incident as "demilitarisation in action", indicating that the explosions were not accidental.

So could Ukraine be behind attacks on critical infrastructure in the region? Dr Jenny Mathers, an expert on Russian politics and security at Aberystwyth University in Wales, discussed the possibility with Newshour's James Menendez

(Photo shows smoke rising following an explosion in a village in Dzhankoi district, Crimea, August 16, 2022.)