Rescue workers have recovered two more bodies from the rubble of a story building which collapsed in the Kenyan capital Nairobi. This brings the death toll to 10, with 30 others injured and 20 people feared missing.

The Nairobi Police Chief Philip Ndolo said the recovery of the bodies, including a man and woman, has reinvigorated emergency workers who are hoping to find more survivors.

The six-story building, located in Nairobi’s south-east Embakasi residential area and housing about two-dozen families, collapsed around 9 a.m on Friday. The cause of the incident has not yet been established, but authorities are already citing the heavy rains that have gripped the region as playing a key role.

Kenya has recently witnessed instances of building collapse even as the demand for housing keeps soaring. On Saturday, one person was reported dead and others injured after a single-story building collapsed in Central Kenya. Also, in September, a school building collapsed in Nairobi, killing at least seven primary students.

In 2015, President Uhuru Kenyatta ordered an audit of the country’s infrastructure to ensure compliance with building codes after eight buildings collapsed and killed 15 people. In its report, the National Construction Authority found that 58 percent of the buildings in Nairobi were unfit for habitation.