Ukrainian special forces successfully detected and destroyed a Russian Buk-M3 anti-aircraft missile system in the occupied part of Zaporizhzhia Oblast on Sept. 14, Ukraine's military intelligence agency (HUR) reported.

The Kirishi refinery is one of the largest in Russia and has a processing capacity of over 17 million tons of oil per year. A fire broke out at the facility during a Ukrainian drone attack, Leningrad Oblast Governor Alexander Drozdenko claimed.

Units of Ukraine's 425th Skelya Regiment liberated the village of Filia in Dnipropetrovsk Oblast, a military spokesperson said. Russia claimed control of the settlement on Aug. 24.

The Metafrax Chemicals plant in Gubakha, Perm Krai, is subject to international sanctions by the U.K. and Ukraine.

"I think we in the United States are behind ... I think a lot of nations are behind, and I think to the credit of the Ukrainians, they picked up on that, and they're the world leaders in it."

"There's no doubt about the drones were intentionally launched. The question is whether the drones were targeted to go into Poland specifically," U.S. Secretary of State Marco Rubio told reporters.

Explosive devices were discovered during an inspection of the tracks, Oryol Oblast Governor Andrey Klychkov said. One of the devices detonated, killing two officers and seriously injuring another.

There is an agreement in place with the EU to maintain Kyiv's progress despite Budapest's veto, Deputy Prime Minister for European Integration Taras Kachka said.

A 7.4 magnitude earthquake struck near the Russian peninsula of Kamchatka overnight on Sept. 13, the U.S. Geological Survey (USGS) reported.

"If something happens — a drone, a provocation, or suspicious troop movements — we can do it," Lithuanian Interior Minister Vladislav Kondratovic said.

The latest reported death toll includes 36,568 volunteers, 18,261 recruited prisoners, 14,797 mobilized troops, and 2,777 mercenaries.

"As of today, we can state that the Russian offensive operation on Sumy has been completely thwarted by our forces," President Volodymyr Zelensky said on Sept. 12, citing front-line reports from Commander-in-chief Oleksandr Syrskyi.

Ukraine will help Poland develop effective anti-drone defenses while France, the U.K., Sweden, and the Netherlands will supply military equipment, including fighter jets and Patriot batteries, Polish Prime Minister Donald Tusk said.

Primorsk in Leningrad Oblast serves as a key hub for Russia's "shadow fleet" of aging tankers used to avoid sanctions, the source said. Roughly 60 million tons of oil pass through the port every year, bringing Russia roughly $15 billion, the source added.

Propaganda campaigns and "large payments" to contract soldiers contribute to Russia's recruitment success, intelligence official Vadym Skibitskyi said.