A cyberattack disrupted Japan Airlines’ operations Tuesday, with Nikkei reportings extensive delays as the carrier works to restore normal service.

Dozens of Japan Airlines flights have been canceled or delayed after a cyberattack disrupted its network, the carrier said Thursday.Japan Airlines said more than 60 flights, including 11 international ones,

Japan Airlines said it was hit by a cyberattack Thursday, causing delays to more than 20 domestic flights but the carrier said there was no impact on flight safety. JAL said the problem started Thursday morning when the company's network connecting internal and external systems began malfunctioning.