At least three Americans are feared dead after a shooting that took place at a children's hospital in Afghanistan this morning.

Officials are saying that an Afghan police officer opened fire at the hospital run by an American organization called CURE.  CURE is based in Lemoyne, Pennsylvania.

The Associated Press is reporting that the Americans killed were doctors at the hospital.

The hospital is located on Darulaman Road near the Darulaman Palace in Kabul.

The United States Embassy in Kabul say it is investigating.