Japan's Nikkei news says Singapore unit hit with ransomware attack

TOKYO (Reuters) - Japanese business news group Nikkei Inc. said on Thursday its Singapore unit had been hit with a ransomware attack.

Unauthorized access of a server at Nikkei Group Asia Pte was first detected on May 13 and the server might have contained customer data, the company said in a statement.

(Reporting by Rocky Swift; Editing by Edmund Blair)