The gunman, armed with a knife and a pistol, used the pistol to shoot the police officer, then grabbed the officer's assault rifle and continued shooting wounding several police officers, soldiers and civilians [REF].
During the attack, security forces shot and injured Abtum Zarhum (Haftom Zarhum), a migrant who entered the country illegally[REF] from Eritrea, after mistaking him for a second gunman [REF].