Number of missing in Florida collapse revised down while nearby tower evacuated

A dog assists search and rescue personnel atop the rubble at the Champlain Towers South condo building (Mark Humphrey/AP)

The number of people missing in the Florida condominium collapse has been revised down, while a different nearby tower was evacuated after engineers found unsafe conditions in the building.

The nearby city of North Miami Beach announced that an audit prompted by the deadly collapse of Champlain Towers found the 156-unit Crestview Towers building structurally and electrically unsafe.