Three people were airlifted to safety on Sunday morning as lava from Hawaii's Kilauea volcano threatened an isolated area where they had become trapped, the National Guard said.

The two men and a woman became the latest in a series of evacuations on Hawaii's Big Island forced by the volcano, which has been erupting since May 3.

On Saturday, National Guard troops, police and firefighters ushered evacuees from homes on the eastern tip of the island, hours before lava cut off road access to the area, officials said.