About 65 of the 243 people who were on the train were also injured, reports said.
The Delta Airlines plane was moved into a hangar at the airport for investigators.
The control tower couldn't get in touch with the pilots after their plane slid off a LaGuardia runway.
Commuters should expect 15 minute delays as trains pass through the crash site.
The captain of Seastreak Wall Street lost control, causing a crash that injured dozens in Janaury 2013.
Tests shows an unusually high concentraion of natural gas in the soil in and around the explosion site.
The death of four people is a tragedy but it may not be a crime, sources said.
There was nothing wrong with the brakes on the Metro-North train that crashed near Spuyten Duyvil.
Gov. Andrew Cuomo said he believes excess speed caused seven cars of a Metro-North train to derail.
Southwest Flight 345, which collapsed upon landing Monday, was removed from the runway Tuesday morning.
Investigators found a damaged propeller on the side of the commuter ferry that crashed in lower Manhattan
Investigators said the Seastreak ferry captain tried to slow the boat but it would not go into reverse.
Federal investigators began their investigation Thursday into why the Seastreak crashed into a dock.
According to a federal ruling, driver Ophadell Williams' fatigue was the cause of a fatal 2011 accident.
Greenhil & Co. banker Jeffrey Buckalew reported ice on his plane prior to a crash, the NTSB said.
Get our daily New York City news and alerts!
Thank you for signing up!
Would you like to sign up for additional newsletters?
Thank you for signing up for additional newsletters.