Investigators with the National Transportation Safety Board are looking into Thursday's deadly Hudson River helicopter crash.  They held a preliminary briefing which we brought to you live on CBS News New York.

Everything is on the table,” NTSB Chair Jennifer Homendy said Friday during a media briefing on the accident, in which a sightseeing helicopter plunged into the Hudson River. The aircraft was carrying a senior executive at Siemens AG,

Six people were killed when a sightseeing helicopter broke apart and crashed into the Hudson River between New York City and New Jersey. Pieces of the aircraft could be seen floating in the river Friday as divers resumed searching for clues as to the cause of Thursday's crash.

Following Thursday’s deadly helicopter crash into the Hudson River, there is some renewed scrutiny towards these types of flights. Prior to Thursday’s incident, there had been three prior deadly helicopter crashes in the last 20 years.

A New York City sightseeing helicopter broke apart in midair Thursday and crashed upside-down into the Hudson River, killing the pilot and a family of five Spanish tourists in the latest U.S. aviation disaster,