A firefighter stops to look at a wall of fire

A firefighter stops to look at a wall of fire while battling a grass fire in Knightsen, California
Jose Carlos Fajardo/Bay Area News Group/San Jose Mercury News via AP

Rescue workers and people try to remove debris of an eight-story building which collapsed

Rescue workers and people try to remove debris of an eight-story building which collapsed in Istanbul
DHA via AP

San Francisco firefighters battle a fire from a gas explosion

San Francisco firefighters battle a fire from a gas explosion on Geary Boulevard in San Francisco
AP Photo/Jeff Chiu

Firefighters battle a blaze in a commercial building

Firefighters battle a blaze in a commercial building in the Bedford Stuyvesant neighborhood of Brooklyn, New York City
AP Photo/Mark Lennihan

A car overturned by a tornado lays smashed on top of a street pole

A car overturned by a tornado lays smashed on top of a street pole in Havana, Cuba
AP Photo/Ramon Espinosa