A Russian military weapons depot has exploded in the city of Belgorod, close to the Ukrainian border.
Russian state media reports that Ukraine shelling struck the arsenal causing it to explode. There are at least four injuries although that may be downplaying the severity of the attack.
Witnesses said the strike had “presumably” come either “via drone or short range ballistic missile”.
Video of the explosion shared to the social media platform shows a huge explosion illuminating the night sky in the distance of the scene being filmed.
It seems to cause the ground to shake, with the clip shuddering up and down as the videographer pans the scene.
The attack comes as the latest blow to Russian president Vladimir Putin, who is currently said to be hiding away at a top secret nuclear bunker east of Moscow.
Movements of planes used by top Kremlin officials show that Putin could be spending some or all of his time at the hideaway near Surgut in western Siberia, it is claimed.
The use of the high security bunkers, if confirmed, is alarming and suggests Putin may be preparing to deploy nuclear weapons, and move that would lead to inevitable reprisal.
Putin's defence minister Sergei Shoigu is also believed to be in a bunker near Ufa in the Urals, 725 miles east of Moscow, according to investigative journalist Christo Grozev.
The Kremlin said it will be withdrawing troops from the Kyiv area of Ukraine after days of stalemate at the Ukraine capital.
The UK's defence ministry Ben Wallace said earlier that Ukrainian forces had succeeded in pushing back Russian troops from a number of positions.
In Chernihiv, however, the city remains under heavy shelling.
The city's mayor, Vladyslav Atroshenko, has estimated that 400 residents have been killed there since the war began.
Deputy defence minister Alexander Fomin claims the decision to withdraw troops from the are Kyiv area comes in the interest of pursuing more peace talks between the countries.
There are hopes that a meeting between Putin and Ukrainian President Volodymyr Zelenskyy could be held in the coming days.
Ukrainian negotiators have proposed adopting neutral status with international guarantees to protect it from attack.
Negotiators said they would not join alliances or host bases of foreign troops - but would have their security guaranteed in a similar manner to the collective defence clause of NATO.
The countries identified to be allowed in facilitating these guarantees are Israel and NATO members Canada, Poland and Turkey.
Russian negotiator Vladimir Medinsky said he will be reporting the Ukrainian proposals to Putin.
