News In Brief

Iranian officials say hijackers of Kuwaiti plane will be tried

Iranian authorities have pledged to put on trial the four Arab hijackers of a Kuwaiti airliner who took over the jet en route from Kuwait to Karachi last Tuesday. A Foreign Ministry spokesman said it would be an open trial.

The six-day hijacking ended here Sunday when four Iranian security men disguised as a physician, a technician, and two aircraft cleaners overpowered the hijackers on the Kuwait Airways airbus after setting off a smoke bomb.

President Reagan praised Kuwaiti leaders for their ''firm stand'' against submitting to the demands of the hijackers, a spokesman said Monday; but Mr. Reagan refrained from commenting on Iran's role in the rescue, apparently awaiting the release of two American passengers.