A 2-year-old boy whose parents and siblings were killed in an attack on a Kabul hotel Thursday is showing signs of improvement in hospital, doctors say.

Abuzar Ahmad was hit by a bullet fragment in the head and suffered other wounds to his body when four gunmen opened fire in the luxury Serena hotel in the Afghan capital.

His father, Agence France-Presse reporter Sardar Ahmad, mother Homaira, six-year-old sister Nilofar and five-year-old brother Omar were among nine civilians who lost their lives in the assault.

- Agence France-Presse contributed to this report