TOKYO — Major Japanese airports were crammed with thousands of passengers unable to take domestic flights Tuesday due to problems with ******* computer systems.

The delays began in the morning, with major Japanese carrier All Nippon Airways posting a notice on its website apologizing for delays and cancellations due to a “system malfunction.”

The ******* said Internet check-in, seat selection, new reservations, changes to reservations and payments were not available for domestic flights. It said it was trying to identify and fix the ******* as soon as possible.

The ******* appeared to be ***** at Tokyo’s Haneda International Airport, which is ANA’s main local hub. There, dozens of flights were listed on the airport’s flight update site as either ******* or cancelled.

Four smaller airlines that use the same system — Starflyer, Airdo, Solaseed Air and Ibex Airlines — also were affected, the Kyodo News agency reported.

Tuesday morning ended a three-day holiday weekend in Japan, so there likely were more travellers than usual.

Television news channels showed airports packed with frustrated travellers.