A Ukrainian drone attack launched overnight succeeded in destroying an ammunition depot in the western Russian region of Tver, a source from Ukraine’s Security Service (SBU) told CNN on Wednesday.

The capture of Ukrainsk underscored Russia’s steady advances in the Donetsk region. Ukraine is trying to counter with strikes on Russian military infrastructure.

A suspected Ukrainian drone attack at an ammunition depot in Russia's Tver region has been described on social media as possibly the biggest event of the war started by Vladimir Putin.

Ukrainian drones have struck a large military depot in a town deep inside Russia overnight, causing a huge blaze and prompting the evacuation of residents.

Depot housed critical military assets including Iskander and Tochka-U tactical missile systems, guided aerial bombs

Renovated in 2018, the facility in Toropets is estimated to have stored tonnes upon tonnes of military goods, including explosives, artillery shells and ballistic missiles.

A huge explosion has rocked the Tver region, in the west of Russia, after Ukrainian long-range attack drones targeted a sprawling ammunition depot there. Such was the power of the detonation that a light-magnitude earthquake was reported in the Tver region,

Ukrainian drones hit an ammunition depot inside Russia this week, the latest attack targeting military facilities deep within the country.

An apparent Ukrainian attack on Russian military infrastructure — one of more than 10 since the beginning of August — struck overnight Tuesday. A munitions depot in the town of Toropets, deep inside Russia,

"The enemy hit an ammunition depot in the area of Toropets," said Yuri Podolyaka, a Ukrainian-born, pro-Russian military blogger.