More than 406 civilians have been killed in Ukraine since Russia’s invasion began on February 24, the Office of the UN High Commissioner for Human Rights (OHCHR) said in a statement Monday, CNN reports.

A further 801 civilians have been injured, OHCHR said.

OHCHR acknowledged that the real figures are likely “considerably higher.”

These figures include data collected between 4 a.m. local time on February 24, 2022, when the Russian Federation’s armed attack against Ukraine started, and midnight on March 6, 2022, the OHCHR said.