At least 38 people have died in helicopter crashes in New York City since 1977, when an incident on a skyscraper landing pad led the city to start putting restrictions on where choppers could land. Helicopter flights are getting renewed scrutiny after a fatal crash into the Hudson River on Thursday.

A fatal crash Thursday became the latest incident in a long history of helicopter wrecks in the New York City area.

A tourist helicopter crashed in New York's Hudson River off lower Manhattan on Thursday afternoon, killing all six people on board. It was the latest in a series of accidents involving choppers operating around the city in recent years.