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 messages, in Ukrainian, started at approximately 22:47 (20:47 GMT), with the first reading: "Radiation threat. Radiation threat declared in Kyiv."

The next alert, written in Russian, came at 22:48, which read: "Hi! There will be a nuclear alert across Ukraine. Don't worry, it's Oreshnik flying".

A third alert, at 22:49, again in Ukrainian, said "Chemical threat. There is a threat of a chemical attack on Kyiv. Don't go outside."