New Delhi, March 17 -- A building collapsed during a planned demolition that went wrong Monday in the Kenyan capital of Nairobi, killing at least four people and injuring four others, officials said.

Rescue workers from the army and other institutions were working to find any people trapped under the rubble, the Interior Ministry said in a statement. Images showed victims being carried away from the rubble on stretchers.

It wasn't immediately clear what happened during the demolition that led to the deaths and injuries.

The building had been one of several "earmarked for removal under the ongoing Nairobi River Regeneration Project," the statement said.

At least two people were rescued, but an Associated Press journalist at the scene i...