During a press conference, Ukrainian President Volodymyr Zelensky announced that some 1,300 Ukrainian soldiers had died in the war.
He also stated that between 500 and 600 Russian soldiers had given up on Friday, according to the news agency Reuters.
Western sources estimate that about 6,000 Russian soldiers were killed in the war, reports the BBC.
Zelenskyj comments on kidnapping
According to Ukrainian authorities, the city of Melitopol's mayor Ivan Fedorov was abducted by Russian forces on Friday.
In a statement on Saturday night, President Zelensky called the action a "violation of democracy" and compared it to IS atrocities in Syria.
Macron and Scholz in talks with Putin
On Saturday, talks were held between French President Emmanuel Macron, German Chancellor Olaf Scholz and Russian President Vladimir Putin.
It should have lasted for 75 minutes, a spokesman for the German government stated according to Reuters.
The Kremlin says Putin has updated Macron and Scholz on the status of negotiations with Ukraine.
Macron and Scholz are said to have made demands for a ceasefire and diplomacy, but also accused Putin of lying, reports TT.
Continued evacuations
Seven people are said to have died after a convoy of Ukrainian civilian women and children was shot at on Friday, the Ukrainian military said according to the BBC.
The attack occurred on the road from the village of Peremoha to the neighboring village of Gostroluchcha a few miles east of Kyiv, according to Ukrainian intelligence.
Another 13,000 people were evacuated on Saturday, including 2,000 from the Kyiv region.
Among other things, an evacuation convoy with 40 buses will arrive in the village of Bilohorodka on Saturday afternoon, according to a statement from the rescue service.
According to the UN migration organization IOM, more than 2.5 million people have now fled Ukraine since the beginning of the war.
Repeated warning against Sweden
The Russian Foreign Ministry has reiterated its warning to Sweden not to join NATO.
"Russia has nothing to do with our independent decisions," comments Swedish Foreign Minister Ann Linde (S) warning.