NATO Secretary General Jens Stoltenberg congratulated Volodymyr Zelensky on winning Ukraine's presidential elections.
He wrote this on his Twitter account.
"Congratulations to Volodymyr Zelensky on winning Ukraine's presidential elections," Stoltenberg said.
He emphasized that Ukraine is a valued NATO partner and expressed hope that bilateral cooperation would be continued.
European Council President Donald Tusk also congratulated Zelensky on his election victory.
"A decisive day for Ukraine. Free elections and peaceful change of power = strong Ukrainian democracy. Congratulations to Volodymyr Zelensky. The EU is determined to continue its support," Tusk wrote on Twitter.
The second round of presidential elections was held in Ukraine on April 21. According to the National Exit Poll as of 20:00, Zelensky won 73% of the vote, whereas Poroshenko garnered 25.5%.