Ukraine's biggest mobile operator, which was hit by a massive cyberattack earlier this month, said on December 20 it had restored services after difficulties with voice communications in some Ukrainian regions. "Our specialists have resolved the communication difficulties that arose this morning in a number of cities in the west and south of Ukraine. The services are now operating as usual," Kyivstar said on the X social-media platform. The company said its network was undergoing stabilization after the attack and there might still be short-term service difficulties. A hacker group believed by Kyiv to be affiliated with Russian military intelligence claimed responsibility on December 13 for the cyberattack. To read the original story by RFE/RL's Ukrainian Service, click here.