Five people were killed and 46 injured in a Ukrainian attack on the southwestern Russian city of Belgorod late on Friday, the local governor said.
Vyacheslav Gladkov said that 37 of the injured, including seven children, were taken to hospital.
Video from a car dashboard, posted on social media and purporting to demonstrate the attack, showed another car being blown up while moving on the road. Seconds later, an explosion is seen on the other side of the road. Reuters could not immediately verify the authenticity of the video.
Russia's Investigation Committee said on its Telegram channel that it had initiated a criminal case into the Belgorod attack.
Authorities also reported that a woman was injured on Saturday during the Ukrainian shelling of the border town of Shebekino in the Belgorod region.
Ukraine has staged frequent attacks on Belgorod and other Russian border regions in recent months. The city has been the focal point of the attacks.
Ukraine and Russia say they do not deliberately target civilians in the war that began when Russia sent thousands of troops to its smaller neighbour in February 2022. Moscow has called the invasion a "special military operation".
Dozens of people are feared to have been killed and around 100 injured after an explosion tore through a crowded bar during a New Year's Eve party in the upscale ski resort of Crans-Swiss police said on Thursday.
Zohran Mamdani was sworn in as New York City mayor in the first minutes of the New Year at the historic City Hall subway station, with his wife Rama Duwaji standing by his side.
US President Donald Trump said on Wednesday his administration was removing the National Guard from Chicago, Los Angeles and Portland but he added in his social media post that federal forces will "come back" if crime rates go up.
President Donald Trump's advisers held talks on Wednesday with Ukrainian President Volodymyr Zelenskyy and national security advisers from the UK, France and Germany to discuss the next steps in ending Russia's war in Ukraine, US special envoy Steve Witkoff said.