Air-raid siren throughout Ukraine: fighter jets take off in Belarus
Українська правда
On the morning of 25 December, an air-raid siren was sounded in Ukraine.
Source: Belaruski Hajun, an independent Belarusian military monitoring media outlet
Details: The Belarusians report that at 9:15, a Russian MiG-31K interceptor, which can carry Kalibr cruise missiles, took off from Machulishchy airfield.
https://www.pravda.com.ua/eng/news/2022/12/25/7382268/
Source: pravda.com.ua