Ukrainian forces hit an important fuel pipeline in the Moscow region that supplies the Russian army, Ukraine’s military intelligence said on Saturday. This comes amid a sustained Russian campaign of massive drone and missile attacks on Ukraine’s energy infrastructure. The operation was carried out late Friday. The agency, which is known by its acronym HUR, described it as a “serious blow” to Russia’s military logistics.

HUR said its forces struck the Koltsevoy pipeline, which spans 400 kilometres and supplies the Russian army with gasoline, diesel and jet fuel. “The operation, which targeted infrastructure near the Ramensky district, destroyed all three fuel lines. The pipeline was capable of transporting up to 3 million tons of jet fuel, 2.8 million tons of diesel, and 1.6 million tons of gasoline annually,” HUR said.