Ukraine and Russia have reported cyberattacks on their emergency alert systems, with hackers spreading false public safety warnings. The incidents involved fake chemical and radiation threat alerts in Ukraine and misleading information through a Russian government mobile application amid the ongoing war.

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

Ukraine's Air Force said the incident appeared to involve external interference. It reassured residents that there was no radiation threat and urged them to remain calm.

"Attention. The Air Alert app has likely been compromised," the Air Force said on Telegram, adding that, "There is no radiation threat! Stay calm and follow our updates on our channel!"

Ukraine's Ministry for Digital Transformation later said in a post on X that the nationwide alert system was operating normally, clarifying that all threat signals were being sent to regional administrations and street alert systems.

The development comes as Ukrainian President Volodymyr Zelenskyy called for an energy ceasefire. He urged US President Donald Trump to consider the conflict's impact on global energy prices.

"If the American president thinks that this war has an influence on the prices, so he can ask for an energy ceasefire," Zelenskyy told Fox News.

Meanwhile, Russia's Ministry of Emergency Situations reported a massive cyberattack on its mobile application. The attack allowed hackers to circulate false information about an alleged public safety threat.

"The Russian Ministry of Emergency Situations' mobile app was subjected to a massive cyberattack, which allowed the attackers to distribute fake information to the public," the ministry said in a statement.

According to TASS, the ministry said it was working to fix the vulnerability and restore the application's normal functioning.

Separately, US First Lady Melania Trump on Sunday praised Moscow and Kyiv for their cooperation during a five-day humanitarian ceasefire in Oleshky, in Ukraine's Kherson region. The ceasefire concluded on November 1.

In a post on X, she said the operation had enabled the delivery of essential humanitarian assistance and the evacuation of nearly 800 people.