"Between midday on March 8 and midday on March 9, a larger space object is expected to re-enter the Earth's atmosphere and possibly fragment," the translated statement explains. "The object is battery packs from the International Space Station (ISS). Luminous phenomena or the perception of a sonic boom are possible."
5,800 pounds of batteries tossed off the ISS in 2021 will fall to Earth today
"Luminous phenomena or the perception of a sonic boom are possible."
https://www.space.com/old-batteries-re-enter-atmosphere
Reentry of International Space Station (ISS) batteries into Earth’s atmosphere
UPDATE (8 March, 20:00 CET): The reentry of the ISS batteries is now expected between approximately 19:30 CET and 21:08 CET on 8 March.
The reentry will occur between -51.6 degrees South and 51.6 degrees North. Large uncertainties, primarily driven by fluctuating levels of atmospheric drag, prevent more precise predictions at this time. The closer we get to the expected reentry window, the better the concerned region can be geographically constrained.
https://www.esa.int/Space_Safety/Space_Debris/Reentry_of_International_Space_Station_ISS_batteries_into_Earth_s_atmosphere