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.

Officials say a Ukrainian drone has struck an industrial plant deep inside Russia, injuring several people and causing a fire.

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,