Ukraine said Saturday it struck an airbase in Russia, which continued overnight to use hundreds of drones in its stepped-up bombing campaign. The fresh wave of attacks signal a breakthrough isn't expected anytime soon in efforts to end the more than three-year-old war.

Ukraine said it struck a Russian airbase on Saturday, while Russia continued to pound Ukraine with hundreds of drones overnight as part of a stepped-up bombing campaign that has further dashed hopes for a breakthrough in efforts to end the more than 3-year-old war.

The district's administrative centre, the town of Sergiyev Posad, is considered the religious centre of the Moscow Region and a spiritual heart of Russia's Orthodox Church. The city's monastery, the Trinity Lavra of St. Sergius that was founded in the 14th century, is a UNESCO World Heritage site.