Hamas fighters have seized Fatah's senior field commanders in the Gaza Strip, a spokesman for the group announced Friday. The spokesman, Abu Obeideh, said the group's men arrested the commander of the National Security organization and of the elite Presidential Guard, along with a senior Fatah spokesman, a lawmaker and six other officials. The men are being interrogated by Hamas, he said on Hamas TV. After five days of intense fighting, Hamas now controls the entire Gaza Strip, the Associated Press reported.