Some 70 government websites temporarily offline, dozens of computer systems at unspecified number of Ukrainian government agencies infected with destructive malware disguised as ransomware.
Dublin's Rotunda maternity hospital said it was canceling most routine appointments due to the IT issues, calling the situation a critical emergency.
Production at Nissan's manufacturing plant in Sunderland, northeast England, has been affected by a cyber attack that has hit nearly 100 countries.
French carmaker Renault was hit by the global ransomware cyber attack that has infected tens of thousands of computers in nearly 100 countries.
G7 finance ministers turned their focus Saturday to combating cyber crime in what Italy's Pier Carlo Padoan described as an "unfortunately very timely" discussion.