A civil liberties group is suing Pan American World Airways on behalf of an Iraqi man who said he was rejected as a passenger because of his nationality.

The suit was filed Thursday in federal court by the National Emergency Civil Liberties Committee.The lawsuit said a Pan Am agent refused to sell a ticket Wednesday to an Iraqi national, identified only as H. Salman, who wanted to fly to Prague, Czechoslovakia.

The New York Times identified the Iraqi as Salan H. Salman, a 34-year-old architect who lives in New York City. It said his wife is from Czechoslovakia.

All airlines were advised by the federal government to add extra security to prevent terrorist attacks stemming from the war. However, Pan Am, which lost a jet with 270 people aboard to a terrorist bomb in 1988, is the only airline that bans all Iraqi nationals, the newspaper said.