Rescuers search for survivors in the rubble of a collapsed residential building in Makongeni estate in Kenya's capital Nairobi December 17, 2014. Three more bodies were recovered on Wednesday night from the building that collapsed in Makongeni estate in Nairobi, raising the death toll to four, Kenya Red Cross has reported. The residential building whose sixth floor was still under construction had allegedly not been cleared for occupation by the Nairobi City County and its owner has been missing since it collapsed. A search and rescue and rescue operation is ongoing for the unknown number of people still trapped under the rubble, Kenya Red Cross also reported. Nairobi deputy police boss Moses Ombati said 15 people have been reported missing so far. The leader of the rescue operation Michael Yabei said it is taking long because of the poor foundation of the building and the low quality materials used in its construction. (Photo by Noor Khamis/Reuters)

Rescuers try to clear rubble from a collapsed residential building in Makongeni estate, in Kenya's capital Nairobi, December 17, 2014. (Photo by Thomas Mukoya/Reuters)

Rescuers search for survivors in the rubble of a collapsed residential building in Makongeni estate in Nairobi December 17, 2014. (Photo by Thomas Mukoya/Reuters)

Rescuers search for survivors in the rubble of a collapsed residential building in Makongeni estate in Nairobi December 17, 2014. (Photo by Thomas Mukoya/Reuters)

Rescuers search for survivors in the rubble of a collapsed residential building in Makongeni estate in Nairobi December 17, 2014. (Photo by Thomas Mukoya/Reuters)

Witnesses argue with security officers at the scene of a collapsed residential building in Makongeni estate in Nairobi December 17, 2014. (Photo by Thomas Mukoya/Reuters)

A military personnel attempts to rescue a survivor in the rubble of a collapsed residential building in Makongeni estate Nairobi December 17, 2014. (Photo by Thomas Mukoya/Reuters)

A bed and a mattress are seen in the rubble of a collapsed residential building in Makongeni estate in Nairobi December 17, 2014. (Photo by Thomas Mukoya/Reuters)

Rescuers search for survivors in the rubble of a collapsed residential building in Makongeni estate in Kenya's capital Nairobi December 17, 2014. (Photo by Noor Khamis/Reuters)

Rescuers search for survivors in the rubble of a collapsed residential building in Makongeni estate in Kenya's capital Nairobi December 17, 2014. (Photo by Noor Khamis/Reuters)

Rescuers carry a survivor from the rubble of a collapsed residential building in Makongeni estate in Kenya's capital Nairobi December 17, 2014. (Photo by Noor Khamis/Reuters)