AP National News

Three days of investigative hearings on the deadly midair collision between a military helicopter and passenger plane over Washington begin Wednesday morning and may reveal new insights into the crash

The National Transportation Safety Board has started investigative hearings on the deadly midair collision over Washington in January

Investigators have found that a helicopter involved in a deadly crash with a passenger plane over Washington was flying above its height limit

Investigators are piecing together more details about how a former high school football player who blamed the game for his mental health problems carried out a deadly attack on an office building that is home to the NFL

Authorities say the 27-year-old man who killed four people at a Manhattan office building bought the rifle he used in the attack and the car he drove across country from his supervisor at a Las Vegas casino

Authorities say the man who killed four people at a Manhattan office building bought the rifle he used in the attack and the car he drove across country from his supervisor at a Las Vegas casino

A powerful earthquake that struck off the coast of Russia has generated tsunami warnings and advisories for a broad section of the Pacific, including Alaska, Hawaii and the U.S. West Coast

One of the most powerful earthquakes ever recorded has sent a tsunami crashing into a Russian port and smaller waves barreling across the Pacific to the Americas and south to New Zealand

The gunman in the deadly shooting at a New York City office tower had a background in casino surveillance and once held a private security guard license

A tsunami has hit coastal areas of Russia’s Kuril Islands and Japan’s large northern island of Hokkaido after a powerful, 8.8-magnitude earthquake struck off the coast of Russia early Wednesday