The U.S. has an estimated 200 tactical nuclear weapons, with roughly half deployed in Europe. The U.S. is believed to have around 100 tactical bombs deployed in five NATO countries on the continent, including in Turkey, Germany and Belgium.

Two drones targeted an industrial facility in Sterlitamak, a city in Russia’s Bashkortostan region, regional Gov. Radiy Habirov said in an online statement. He didn’t specify what facility was targeted but he said that both drones were shot down.