Tens of thousands of Ukrainian soldiers are at risk of being encircled, open-source maps of the battlefield show.

Russian soldiers crept miles through a major gas pipeline near the town of Sudzha to catch Ukrainian forces off-guard as part of a major offensive to expel Kyiv troops from Kursk in western Russia, Reuters reports.

Ukraine’s military and Russian war bloggers say Russian special forces walked inside of a gas pipeline to strike Ukrainian units from the rear in the Kursk region.

Russia launched heavy aerial attacks on Ukraine for a second night Saturday after the United States stopped sharing satellite images with the Ukrainian government, officials said. At least 22 people have been killed.

Officials say Russia has launched heavy aerial attacks on Ukraine for a second night. Without U.S. satellite imagery, Ukraine's ability to defend itself is diminished.

Russia is ramping up strikes on Ukraine, killing at least 11 people today, according to Ukrainian officials. The latest attacks come after the U.S. decided to stop sharing satellite intelligence with Ukraine.

The strikes on Dobropillya in Donetsk region destroyed several residential blocks At least 25 people have died in Ukraine in the latest wave of Russian strikes, Ukrainian officials say, as the conflict shows no sign of easing.