Kyiv, Nov. 2 -- Ukraine and Russia have reported cyberattacks targeting their respective emergency alert systems, with fake warnings about chemical and radiation threats circulated across Ukraine and false public safety information distributed through a Russian government mobile application amid the continuing war between the two countries.

According to Fox News, Ukraine's air raid alert system was hacked, sending warnings of alleged chemical and radiation threats to mobile phones across the country. The loudspeaker alert system was also compromised, broadcasting similar messages across the streets of Kyiv.

Ukraine's Air Force said the incident appeared to involve external interference, while reassuring residents that there was no radia...