Ukrainian forces hit an important fuel pipeline in the Moscow region that supplies the Russian army, Ukraine's military intelligence said Saturday, a claim that came amid a sustained Russian campaign of massive drone and missile attacks on Ukraine’s energy infrastructure.

Questions have arisen after Russian President Vladimir Putin said his country tested two nuclear-capable weapons this week.

After more than a year of bloody assaults, hundreds of Russian troops are now fighting inside the city of Pokrovsk.

HUR said its forces struck the Koltsevoy pipeline, which spans 400 kilometres and supplies the Russian army with gasoline, diesel and jet fuel

Aliia Roza, a former Russian “sex spy” who claims she was trained to seduce and manipulate targets, said she studied persuasion tactics as a teenager.

Ukrainian soldiers told Business Insider the tactic is becoming increasingly frequent and a growing challenge.

Moscow’s forces infiltrated Pokrovsk after months of attacks on the city, a strategic part of Ukraine’s eastern defenses.

Lukoil is selling its international assets in response to U.S. sanctions. The sanctions, imposed by President Donald Trump, aim to push Russia toward a ceasefire in Ukraine.

Ukraine's Main Intelligence Directorate (HUR) notes that the special operation targeted the Koltsevoye oil pipeline, which supplied resources to the Russian army, and is located just fifty kilometres from the Russian capital,

Prime Minister Viktor Orban is looking for an economic boost from his meeting with President Donald Trump next week, as well as assurances that Hungary can be shielded from the impact of US sanctions on Russian oil,

Federal prosecutors wrote in court papers that Amirov and Omarov “sought to soak the Brooklyn streets with the victim’s blood.”

Poland scrambled fighter jets and an early warning aircraft, and put its ground air defenses and radar systems on "the highest state" of alert.