Guardia afgano mata a tres medicos estadounidenses en un hospital en Afganistan

Three American doctors were shot dead by an Afghan security guard at a hospital. A nurse was injured. Two of the doctors were father and son, and the third was a pediatrician with seven years of experience in Kabul. The attacker, part of the Afghan Public Protection Force, was injured, detained, and operated on at the same hospital. The motive remains unknown. The US embassy confirmed the victims' nationality. This incident is part of a series of attacks on foreigners in Kabul, including a restaurant bombing in January and a hotel attack in March.

¿Qué se sabe sobre el atacante según las autoridades?

¿Qué otros incidentes violentos se mencionan en el texto?