The Pentagon’s website that tracks war casualties remains incorrect nearly a day after the totals for US service member deaths and injuries in the war with Iran were reduced in what Defense Department officials called a “data disruption.”

Democratic members of the Senate sent a letter to Defense Secretary Pete Hegseth late Thursday demanding answers as to why the website was having issues and asked for a full accounting of war casualties.

Four deaths and dozens of injuries disappeared from the totals on Thursday after the Defense Casualty Analysis System website had correctly listed the total number of US troops killed in the war at 18 earlier in the week. Four soldiers died – three in Jordan and one in Iraq – as part of operations over the weekend.

President Donald Trump attended the dignified transfer of the remains of those four service members on Wednesday at Dover Air Base in Delaware. The president confirmed the 18 total deaths during a Thursday press appearance but downplayed their significance.

“One is too many, but it’s 18, whereas in Vietnam, we lost 200,000,” he said. The Pentagon’s official tally for total deaths in Vietnam is 58,220.