Japan Airlines said Thursday that it was targeted by a cyberattack, causing delays to more than 20 domestic flights, but that there was no impact on flight safety. According to JAL, the situation began Thursday morning when the company’s network connecting internal and external systems malfunctioned. According to the airline, the incident caused 24 domestic flights to be delayed for more than 30 minutes, and the impact may worsen later in the day. According to the Kyodo News Service, the airline told authorities that it could have been the victim of a distributed denial-of-service, or DDoS, attack, in which networks are overwhelmed with data from several sources over a short period of time.

Japan Airlines announced Thursday that it had been targeted by a cyberattack, resulting in delays to more than 20 domestic flights but with no impact on flight safety. According to JAL, the problem started Thursday morning when the company’s network connecting internal and external systems failed. According to the airline, the issue caused 24 domestic flights to be delayed for more than 30 minutes, with the impact potentially worsening later in the day. According to the Kyodo News Service, the airline informed authorities that it may have been the victim of a distributed denial-of-service, or DDoS, assault, in which networks are overwhelmed with data from multiple sources in a short amount of time.