Rescuers work near the site where a building partially collapsed in downtown Cairo, Egypt, on Aug. 15, 2020. Four people were injured when an old building in Cairo's Qasr al-Nile street partially collapsed on Saturday, according to reports. (Xinhua/Ahmed Gomaa)

People gather at the site where a building partially collapsed in downtown Cairo, Egypt, on Aug. 15, 2020. Four people were injured when an old building in Cairo's Qasr al-Nile street partially collapsed on Saturday, according to reports. (Xinhua/Ahmed Gomaa)

Photo taken on Aug. 15, 2020 shows the site where a building partially collapsed in downtown Cairo, Egypt. Four people were injured when an old building in Cairo's Qasr al-Nile street partially collapsed on Saturday, according to reports. (Xinhua/Ahmed Gomaa)

Photo taken on Aug. 15, 2020 shows the site where a building partially collapsed in downtown Cairo, Egypt. Four people were injured when an old building in Cairo's Qasr al-Nile street partially collapsed on Saturday, according to reports. (Xinhua/Ahmed Gomaa)

Rescuers work near the site where a building partially collapsed in downtown Cairo, Egypt, on Aug. 15, 2020. Four people were injured when an old building in Cairo's Qasr al-Nile street partially collapsed on Saturday, according to reports. (Xinhua/Ahmed Gomaa)

Security personnel stand guard near the site where a building partially collapsed in downtown Cairo, Egypt, on Aug. 15, 2020. Four people were injured when an old building in Cairo's Qasr al-Nile street partially collapsed on Saturday, according to reports. (Xinhua/Ahmed Gomaa)

Security personnel stand guard near the site where a building partially collapsed in downtown Cairo, Egypt, on Aug. 15, 2020. Four people were injured when an old building in Cairo's Qasr al-Nile street partially collapsed on Saturday, according to reports. (Xinhua/Ahmed Gomaa)