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,

Russia said it was working to repel a Ukrainian drone attack on Toropets, where there's a major military depot, as explosions lit up the night.

The attacks were carried out by Ukraine’s Security Service, along with Ukraine’s Intelligence and Special Operations Forces.