Feb. 18 (UPI) -- Chicago Mayor Lori Lightfoot says the city is taking steps to remove homeless people who have been sleeping in O'Hare International Airport, calling their presence a risk to security.

Feb. 18 (UPI) -- Power levels in Terminal 1 of John F. Kennedy Airport in New York City were returned to normal on Saturday after the facility was temporarily closed due to major outage this week.

Feb. 18 (UPI) -- More than 20,000 students at Michigan State University have signed a petition to delay the return of classes after three students died in a mass shooting this week.

Feb. 18 (UPI) -- At least 17 people were hospitalized and hundreds more evacuated after a fire spread through a high-rise apartment building in Silver Spring, Md., authorities said Saturday.

Feb. 18 (UPI) -- Nine children, including a five-year-old boy, were shot and injured outside a Georgia gas station, authorities said Saturday.

Feb. 18 (UPI) -- Avian influenza, commonly known as bird flu, has been detected in Santa Barbara County, Calif., as worries about the disease's spread to mammals continued to mount.

Feb. 18 (UPI) -- The Biden administration has moved to reestablish the legal underpinnings used to enforce federal mercury emissions standards for power plants first set during the Obama administration.

The fierce Tropical Cyclone Freddy on Saturday was approaching Madagascar, where experts say life-threatening impacts are likely in the coming days.

Feb. 17 (UPI) -- The U.S. Department of Energy on Friday announced $50 million to help promote clean energy use on tribal lands.

Feb. 17 (UPI) -- A deer crashed through a window into a Tennessee high school and ended up breaking through another window into a second classroom.