IDF soldiers killed a Palestinian near the Suffa crossing in southern Gaza on Thursday afternoon.
The army said soldiers had spotted the man crawling near the border fence. Suspecting he was planting a bomb, they called on him to stop and shot in the air. When he continued moving, they fired at him.
Palestinian medics brought his body to a hospital in Gaza and said they did not find weapons near his body.
Meanwhile on Thursday Hamas security men arrested a Fatah-affiliated physician a day after doctors and nurses at Gaza's main hospital held a protest against his dismissal from a managerial post at the facility.
Dr. Goma Assaqa was taken from his home in the early hours of the morning by members of Hamas's Executive Force, his wife said.
It was the first arrest by Hamas Islamists of a high-profile physician in the Gaza Strip since they took over the territory in a brief civil war with President Mahmoud Abbas's Fatah movement in June.
As members of the Executive Force looked on with visible displeasure, dozens of medical staff at Shifa Hospital stopped work for two hours on Wednesday, demanding Assaqa's reinstatement as public relations director.
They also called on the Hamas-run government in Gaza to return Fatah-appointed hospital chief Dr. Hazzaa Abed to his post.
A Hamas official denied Assaqa's arrest was politically motivated.