From 4 a.m. on 24 February 2022, when the Russian Federation’s armed attack against Ukraine started, to 24:00 midnight on 24 May 2022 (local time), the Office of the UN High Commissioner for Human Rights (OHCHR) recorded 8,628 civilian casualties in the country: 3,974 killed and 4,654 injured, Report informs, citing OHCHR's website.

This included: a total of 3,974 killed (1,497 men, 985 women, 91 girls, and 99 boys, as well as 69 children and 1,233 adults whose sex is yet unknown) a total of 4,654 injured (938 men, 619 women, 108 girls, and 130 boys, as well as 164 children and 2,695 adults whose sex is yet unknown)

Most of the civilian casualties recorded were caused by the use of explosive weapons with a wide impact area, including shelling from heavy artillery and multiple launch rocket systems, and missile and air strikes.

OHCHR believes that the actual figures are considerably higher.

https://report.az/en/other-countries/un-nearly-4-000-civilians-killed-in-ukraine/