Ukraine air raid app apparently hacked as users receive false radiation threat, Air Force says

Ukraine's air raid alert app was apparently hacked on Sunday and for a short time said the capital Kyiv was subject to a radiation threat, the Ukrainian Air Force has said.

The Air Force message on Telegram read: "The Air Alarm application has probably been subjected to hostile interference. There is no radiation threat! Stay calm and follow our updates on our channel."

The Central Intelligence Agency said on Telegram that there had been a failure in the app, and urged people to use other sources of information to clarify the situation regarding the threat of air strikes.

In a separate post, it said that due to the Air Alert application, the Radiation Hazard signal was played on loudspeaker devices in the Lviv region, and added there was no threat of radiation hazard.

It advised the public to turn on notifications on your smartphone, pay attention to sirens, and to only read official sources.

The governor of Vinnytsia oblast, Natalya Zabolotna said there had been a cyberattack on the Air Alert app and posted a warning on Telegram not click on the link in the message.

The Air Alert app is supported by the Ministry of Digital Transformation of Ukraine, and informs users instantly about the beginning and end of defence alerts.

This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.

You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on X, external to get the latest alerts.