The office said Israeli regime forces have also detained 180 Palestinians during the period, while 813 bodies have been recovered from under the rubble.
It estimates that more than 8,000 bodies remain buried beneath buildings destroyed by the Israeli regime.
Meanwhile, the office said only 66,607 aid trucks have entered Gaza out of an expected 189,000, amounting to just 35 percent of the agreed total.
It added that 11,759 people have been allowed to travel through the Rafah crossing out of an expected 29,800, or 39 percent.