Massive cyberattack hits Ukrainian gov't websites as West warns on Russia conflict

FILE PHOTO: A computer keyboard lit by a displayed cyber code is seen in this illustration picture taken on March 1, 2017. REUTERS/Kacper Pempel/Illustration

KYIV (Reuters) -A massive cyberattack warning Ukrainians to "be afraid and expect the worst" hit government websites late on Thursday, leaving some websites inaccessible on Friday morning and prompting Kyiv to open an investigation.

Ukraine's foreign ministry spokesperson told Reuters it was too early to say who could be behind the attack but said Russia had been behind similar strikes in the past.