5 Nato troops killed in Afghan helicopter crash

Also Saturday, an Afghan university official identified the two Americans killed in a shooting at a Kabul hospital earlier this week.  

The vice-chancellor of Kabul University, Mohammad Hadi Hadayati, named the two as health clinic administrator Jon Gabel and his visiting father, Gary.

Hadayati said that Jon Gabel's wife was wounded in the attack Thursday saw that an Afghan police security guard open fire as the family entered the grounds of Cure International Hospital.

The Gabel family was visiting pediatrician Dr. Jerry Umanos of Chicago, who was also killed in the shooting.

Hadayati said Jon Gabel ran a clinic at the university providing low-cost medicine and also volunteered to teach computer classes.

He said Gabel worked with US charity Morning Star Development.