KABUL (AP) – An Afghan security guard opened fire on a group of doctors at a Kabul hospital this morning, killing three American physicians and wounding a U.S. nurse. The shooting at Cure International Hospital was the latest in a string of deadly attacks on foreign civilians in the Afghan capital this year. Two of the dead Americans were a father and son and the third American was a Cure International doctor who had worked for seven years in Kabul. Cure International is based in Lemoyne, Cumberland County. CURE is a network of charitable hospitals that delivers medical care and the good news of God’s love in 29 different countries. They have been serving Afghanistan since 2002. The attacker was a member of the Afghan Public Protection Force assigned to guard the hospital. The gunman was wounded and in custody. A Ministry of Health spokesman said five doctors had entered the compound of the hospital and were walking toward the building when the guard opened fire on them. Mark Knecht, Cure International’s Chief Financial Officer, said they remain committed to serve the people of Afghanistan. He also is asking for prayers for “the families of the victims and those affected by the shooting, as well as the peace in Afghanistan.” He said Dale Brantner, president and CEO, is traveling internationally and will issue a formal statement this afternoon.