The number of people rescued from a collapsed building in Kenya's capital has risen to four, while several others remain missing and are reported to have communicated with loved ones from beneath the rubble.

Rescue operations entered a third night Sunday as relatives said they were losing hope of finding those trapped alive.

The 18-story building collapsed Friday in a busy commercial street of the capital Nairobi , trapping construction workers and people reportedly inside shops on the ground and basement floors that had been illegally occupied.

Rescuers searched through the concrete and steel debris throughout Sunday and pulled two more people alive from the rubble, bringing the number of survivors rescued to four.

One of those rescued Saturday was tailor Victor Onyango, who said he remained hopeful and spoke with Zaynaba Mohammed, a shop owner who was also trapped overnight Friday.

“On Saturday morning, I saw some light coming through the rubble, and I knew those were rescuers,” Onyango told…