Police: 3 killed, at least 21 injured in Rwanda building collapse; death toll could rise

Police in Rwanda say a four-story building that was under construction collapsed, killing at least three workers and injuring 21 more people.

Rwandan police said in a statement late Tuesday that the building in the eastern district of Nyagatare collapsed Tuesday afternoon. The statement described the incident as an "unfolding tragedy."

It said police are working with the Rwandan military to find survivors. It was yet clear what caused the collapse or even how many people are feared buried under the rubble.

In recent years, building collapses have become frequent in East and Central African countries as some property developers bypass regulations to cut costs. In March, a building collapsed in the Tanzanian city of Dar es Salaam, killing at least 30 people.