Jetpacks spark conservation fears in Hawaii

Thrill-seekers in Hawaii who don jetpacks that propel them into the air to fly like Iron Man are taking flak from officials and fishermen over safety and conservation fears.

There are calls for regulation amid concerns over how they may affect fish and coral in the state’s tropical waters.

A device called the Jetlev can lift a person 30ft (9m) high by pumping water from a backpack through a hose connected to an unmanned boat.