Update 4.45pm: The four passengers that were aboard a helicopter which forced to make an emergency landing off Hayman Island have been confirmed as being safe.
A passenger vessel arrived at the site about 4.30pm and is now taking those aboard to Hamilton Island.
Queensland Ambulance confirmed no injuries were sustained in the incident, which occurred about 30km north of the island.
The aircraft managed to land upright on the water using floats and will be retrieved at a later time.
CQ Rescue are now returning to base.
Update 4.16pm: RESCUE crews have arrived at the site of a reported helicopter crash in the Whitsundays.
Four people on board are believed to be safe, after the small helicopter crashed into the ocean 30km north of Hayman Island this afternoon, however this has not yet been confirmed.
Whitsunday Water Police said the aircraft appeared to have landed upright on its pontoon, and was currently floating.
There is currently a rescue aircraft above the crash and an additional rescue boat is on the way.
CQ Rescue reported the crash about 3.50pm and deployed a rescue crew toward Barb Reef for a search and rescue mission immediately.
Water police have already notified the Australian Transport Safety Bureau and once the passengers are retrieved it's believed the aircraft will be salvaged.
Initial: A RESCUE effort is underway for four people on board a small helicopter that is believed to have crashed into the water near Hayman Island, in the Whitsundays.
RACQ CQ Rescue put out an alert that said they were departing on a search and rescue mission for the aircraft and its passengers, after it was reported the helicopter dipped and possibly crashed into the water.
A Queensland Ambulance Service spokesman said paramedics were on board a rescue helicopter and volunteer marine rescue boat that was headed towards Barb Reef.
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