THIS is the dramatic moment a Russian tank was obliterated after three Ukrainian grenades ignited the ammo on board. Drone footage shows three smaller explosions followed by a mega-blast – leaving the tank in ruins near Kharkiv as soldiers frantically fleed. twitter.comUkrainian troops used a drone to blast a tank with three grenades[/caption] twitter.comSoldiers can be seen fleeing as the munition strikes the vehicle[/caption] twitter.comA huge mega-explosion followed as ammo on board detonated[/caption] ReutersBurnt out Russian military equipment litters Ukraine[/caption] Trails of destroyed Russian military equipment litter Ukraine as Vladimir Putin’s invasion continues to falter in the face of stiff resistance from heroic defenders. Fresh footage shows a Russian T-72B3 tank being seemingly vaporised by three grenades dropped by the 93rd Mechanized Brigade of the Ukrainian army near the city of Izium. The clip from May 14 shows the three munitions dropping to the ground in around 30-second intervals as Russian soldiers disperse and run away. As each strikes the tank, flames erupt from the armoured vehicle as it explodes – filling the air with thick plumes of smoke. Read more on Ukraine HEROES RETURN Eurovision winners arrive home to ecstatic crowds & prepare to fight Russia MERCY MISSION Victim was torn to pieces, says Brit volunteer saving lives in Ukraine But after the third is unleashed, a fourth huge blast wipes out the tank as ammo stored on board detonates Putin has faced repeated humiliation in Ukraine since he ordered his troops into the country on February 24 – with thousands of his forces killed and a vast amount of military equipment reduced to rubble. Pictures show Russian tanks and other military vehicles dumped in Bucha as brave Ukrainians continue their staunch defence, fighting tooth and claw against invaders. It comes as Ukrainian troops continue to wreak havoc with drones, using one to blitz a Russian base as Putin’s disastrous war has seen his forces pushed all the way back to the border. Most read in The Sun FIT FOR A PRINCE Naseem Hamed pictured near Windsor after renting £1.4m house next to Queen STAYING PUT I’m a working mum-of-three but I won’t give up my council house – I deserve it SATURDALES NIGHT FEVER Ex-Emmerdale actor Adam Thomas signs up for this year's Strictly 'AMAZING SUPPORT' Blackpool's Jake Daniels becomes 1st openly gay footballer since Fashanu EMBRACE IT It might be last time I feel the rain so I’m embracing it, says Deborah James LEGCELLENT Beauty fans go crazy for a painless hair eraser that gets rid of strawberry legs Footage showed the moment bombs – dubbed by Ukrainian commanders as “letters of happiness” – fall to the ground before exploding in massive balls of fire. Another clip showed Ukrainian defenders using a drone to blast a trench where Russian soldiers were hiding. Footage shows the bomb hurtling towards the ground as Putin’s fighters attempt to scramble from their hideout. In another act of defence, video game-style footage showed the moment Ukrainian troops peppered the enemy with grenades dropped from drones. One soldier fell to the ground while others fled when the surprise explosives dropped on an unsuspecting group of Russians. As Putin’s calamitous war rages on, Russian commanders are said to be slaughtering their own wounded soldiers rather than getting them off the battlefield for treatment. One lieutenant-colonel was accused by captured Russian soldiers of personally shooting dead several of his men as they lay injured. Read More on The Sun walk-ing out BBC Breakfast fans in tears as Dan Walker bids farewell to show LABOURS OF LOVE I gave birth to my baby son twice – the second time was 11 weeks later The commander asked one soldier if he could walk and when the man replied he could not, the officer killed him. The chilling account comes from army intelligence troops captured by the Ukrainians. ReutersPutin has suffered humiliation in Ukraine as troops continue to defend their country[/caption] ReutersDestroyed Russian machinery dumped in Bucha[/caption]