The United Nations secretary‑general said he was "deeply saddened by the tragic loss of life caused by severe flooding and landslides across Sri Lanka, Indonesia, Thailand, and Malaysia," and conveyed his "heartfelt condolences to the families of the victims," in a written statement.

The statement, delivered by the secretary‑general, said "more than 1000 people have reportedly lost their lives" and that many remain missing as "heavy rains continue to inundate large areas," leaving "millions affected." The release identified Sri Lanka, Indonesia, Thailand and Malaysia as the countries hit by the storms and landslides.

The United Nations said it "is in close contact with authorities in all of these countries and, of course, stands ready to support relief and response efforts." The statement added that "UN country teams remain at the disposal of governments to provide necessary assistance, and some are already doing so," but did not specify the form or scale of assistance.

The secretary‑general's remarks were framed as condolence and a pledge of support; the statement did not provide operational details such as funding amounts, timetables for deliveries, or which UN agencies would lead specific response activities. No independent verification of the casualty figures was provided in the statement.

The United Nations' expression of solidarity and the note that UN country teams are already engaged indicate coordination with national authorities is underway. The statement concluded by reiterating readiness to assist affected governments while some country teams have begun support on the ground.