Attack on Belgorod
On 29 March 2022, local officials reported a series of explosions outside the Russian city of Belgorod, close to the border with Ukraine. It was later reported that those explosions may have been caused by a fire. On 7 April, the Investigative Committee of the Russian Federation claimed that the explosions were the result of a Ukrainian attack that used 3 Tochka-U tactical ballistic missiles. 8 people were injured and 21 vehicles were destroyed. On 1 April, according to Russian Governor Vyacheslav Gladkov and an unnamed US official, two Ukrainian Mi-24 Helicopters attacked and set fire  to a fuel depot in Belgorod, Russia in a low-altitude airstrike with no reported casualties. Ukraine neither confirmed nor denied accountability as of 3 p.m., April 1, UTC time. This is the first alleged Ukrainian airstrike in Russian territory since the beginning of the 2022 Russian invasion of Ukraine. Ukrainian security official Oleksiy Danilov denied Ukraine was behind the helicopter attack as part of a joke in which he blamed the "People's Republic of Belgorod" instead.