The Supreme Court on Thursday upheld the dismissal of a discrimination lawsuit against the government that demanded an apology and damages over the U.S. firebombing of Tokyo, which claimed tens of thousands of lives in 1945, the top court said Thursday.

The five-justice first petty bench, presided over by Justice Tomoyuki Yokota, handed down the decision Wednesday.

The plaintiffs are a group of civilian victims and relatives of those who died in the air raids in the closing days of World War II.