The spokesman of Hamas’ police in Gaza says Egyptian border guards opened fire last week, killing a mentally disabled Gazan who tried to get across the border between Egypt and the coastal strip.

The spokesman, Eyad al-Bozom, says the shooting occurred Thursday and accused the Egyptians of killing the Gazan in “cold blood.” He says the man, Hasan Izhaq, was harmless and naked and was trying to cross the coastal border.

Al-Bozom says Palestinian policemen on the Gaza Strip’s side of the border shouted at the Egyptian soldiers not to shoot but were ignored.

The spokesman urged Egyptian authorities to investigate and prosecute those responsible for the shooting. Egypt maintains a blockade on its border with Gaza.

Egyptian military spokesman Brig. Gen. Mohammed Samir declined to comment on the incident.