Kiev Mayor Vitali Klitschko congratulated his younger brother Wladimir on Instagram on his 46th birthday in the middle of the war in Ukraine.
“I thank happiness and our parents for my beloved brother!
Congratulations,” Vitali wrote in the online network on Friday.
“We have a strong bond even though we are apart.
We are together in Kyiv at this crucial time for Ukraine.”
The mayor of the Ukrainian capital posted a video showing him and his brother.
“We stand shoulder to shoulder.
I feel my brother's support every day and every second.
Recently he said to me: This is the hardest fight of our lives - the fight for our city and our country.
And I have no doubt that we will win," said Vitali.
According to the Ukrainian Defense Ministry, Russian troops have recently partially succeeded in creating a land bridge from the Donetsk region in the east to the Crimean peninsula.
According to the local police, four people were killed when a clinic was shelled in the eastern Ukrainian city of Kharkiv on Friday morning.
The building served as a center for humanitarian aid.
Russia has repeatedly said it only attacks Ukrainian military facilities.
North of Kyiv, the small town of Slavutych is surrounded, according to local authorities.
Shortly after the announcement, an advisor to President Volodymyr Zelenskyy said that an initial attack on the city had been repelled.
The information has not been independently verified.