While repelling the attack, Ukraine lost its fourth F-16 fighter jet. Although details surrounding the loss remain undisclosed, Ukrainian President Volodymyr Zelenskyy posthumously bestowed the title of Hero of Ukraine on pilot Maksym Ustymenko,

KYIV, Ukraine (AP) — Russia launched its biggest aerial attack against Ukraine overnight, a Ukrainian official said Sunday, part of an escalating bombing campaign that has further dashed hopes for a breakthrough in efforts to end the 3-year-old war.

Three people have been killed and 35 taken to hospital following an attack by Ukraine on a factory in the city of Izhevsk - more than 1,000km (620 miles) from the border, Russian authorities say.