OREANDA-NEWS  Internet providers of Crimea were subjected to an unprecedented hacker attack on Friday, said Oleg Kryuchkov, adviser to the head of the republic.

"An unprecedented cyberattack on Crimean Internet providers. We fix interruptions with the Internet on the peninsula. All services are working to eliminate the threat," Kryuchkov wrote in his telegram channel.

The day before, he reported an attack on a number of websites of state agencies and the Crimean media.