What is clear-air turbulence? What to know about the "very violent" phenomenon
CBSN
Video and passenger accounts have painted a picture of chaos aboard Singapore Airlines Flight SQ321 after the passenger aircraft encountered what the airline called "sudden extreme turbulence."
One person died during the incident. Authorities believe the passenger, identified as a 73-year-old British man, had a heart attack. Dozens more passengers were injured. Six people were treated for severe injuries after the plane made an emergency landing in Bangkok, Thailand, CBS News previously reported.
The incident has drawn attention to the dangers turbulence can pose. One type of turbulence, known as clear-air turbulence, can be especially difficult for pilots.
Three Russian ships and a nuclear-powered submarine are expected to arrive in Cuba this week ahead of military exercises in the Caribbean, officials said. While the exercises aren't considered a threat to the U.S., American ships have been deployed to shadow the Russians, U.S. officials told CBS News.
New Delhi — An attack by unidentified militants in the Indian-controlled portion of the restive Himalayan region of Kashmir left nine people dead and 33 others injured Sunday, police said. Suspected terrorists opened fire on a bus carrying Hindu pilgrims, making the driver lose control and sending the bus plunging into a gorge in the mountainous region, district police said.