Additional F-16 fighter jets have arrived in Ukraine, Ukrainian President Volodymyr Zelenskyy said.

"Additional F-16s have arrived in Ukraine," he said during a video conference with journalists.

In addition, the president denied Russian claims about the alleged downing of an F-16.

"The Russians lied to us that they shot down an F-16. A lie. No one shot down an F-16," Zelenskyy added.