He published the corresponding post on his Twitter page.
“Congratulations, Joseph Biden and Kamala Harris, on your election as the next US President and Vice President,” he wrote.
I congratulate @JoeBiden on his election as the next US President & @KamalaHarris as Vice President.
I know Joe Biden as a strong supporter of our Alliance & look forward to working closely with him.
A strong #NATO is good for both North America & Europe https://t.co/Ij3rWtNH5c
- Jens Stoltenberg (@jensstoltenberg) November 7, 2020
At the same time, Stoltenberg expressed his hope for close cooperation with Biden.
Earlier, a number of media outlets, including CNN, AP, NBC and Fox News, announced Biden's victory in the US presidential election.
Biden later declared himself the winner of the presidential election.
Biden has already been congratulated on his victory by Canadian Prime Minister Justin Trudeau, Fijian Prime Minister Frank Mbainimarama, French President Emmanuel Macron, British Prime Minister Boris Johnson, German and Austrian Chancellors Angela Merkel and Sebastian Kurz, as well as the heads of Greece and Belgium Kyriakos Alexander Mitsotakis and De Cro.