A Jordanian soldier convicted of killing seven Israeli children in 1997 underwent heart surgery Tuesday and was in "good and stable" condition, the official Petra news agency reported.
Cpl. Ahmed Mousa Daqamseh is serving a life sentence for the shooting deaths of the Israeli junior high school girls, who were on a field trip to a small island in the Jordan River.
Six others were wounded.
The military court charged Daqamseh with premeditated murder, which would normally carry the death penalty, but the court, presided over by military officers, declared him mentally unstable.