Nine people were injured, one critically, by an apparent natural gas explosion in Denver on Tuesday, firefighters said.
Ebola vaccinations began Wednesday in Congo's latest outbreak of the deadly virus that has already claimed at least nine lives.
The Mendocino Complex Fire in northern California has officially become the largest wildfire in the state's history.
California Wildfires: Firefighters battling deadly and destructive blazes in Northern California faced worsening weather conditions on Friday.
More than a dozen wildfires blazing all across California have killed eight people and scorched more than 240,000 acres (375 square miles).
Wildfires: California's largest and deadliest blaze of the year has slowed slightly after days of explosive growth, authorities said.
Great Lakes: Summer Stock reserve members are serving vital roles as boat coxswains - in charge of Coast Guard small vessels and boarding team members.
Thousands of people were without power Friday after a flurry of unexpected tornadoes swept through central Iowa, injuring at least 17 people and flattening buildings in three cities.