“It looked like it was completely submerged,”witness John Magers, 24, told the New York Post. “It couldn’t have been any longer than five minutes.”

One person managed to escape and was scooped up by a tug boat. Divers with the New York Police Department (NYPD) and New York Fire Department are currently searching the waters for at least five other people who are reportedly trapped inside.

The search is taking place near Roosevelt Island, located between Manhattan and Queens, a spokesman for the New York Fire Department said.

Have you ever taken a sightseeing tour on a helicopter? Or are you worried about the safety aspects? Let us know in the comments below.