The depot appeared to be just kilometers (miles) from another that was struck by Ukrainian drones early Wednesday, injuring 13 people and also causing a huge fire.

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.

A massive Ukrainian drone attack set a Russian arms depot ablaze deep inside the country, as Ukrainian President Volodymyr Zelensky said ahead of his visit to the White House that Kyiv’s multi-point “victory plan” demands quick action from the United States.