Inside a sweltering nursing home, a crisis unfolded Wednesday as 150 centers across Florida still lacked power days after Hurricane Irma ravaged the state.

Firefighters and medics responding to an emergency call in Hollywood, north of Miami, found three people dead inside a building whose second floor the police chief later described as "extremely hot."

Altogether, city officials said eight people between the ages of 71 and 99 had died, but the causes were not yet determined. An investigation of possible criminal negligence has begun, Hollywood Police Chief Tomas Sanchez told reporters.