A girl who impaled her leg at Rakino Island is one of five people assisted by the Auckland Westpac Rescue helicopter on Wednesday.
A spokesperson for the helicopter says the incident happened before 2pm.
"A crew was called out to assist a girl who was running down a track and tripped on a freshly cut branch protruding from a tree stump.
"Her leg was impaled ont he branch and it was cut and left in to prevent bleeding.
"She was flown to Starship Hospital in a moderate condition."
Earlier that day crews were also called to assist a male patient in his 50s suffering burns to his limbs.
"He suffered burns to his limbs after attempting to relight a fish smoker.
"He was thrown by the force of an explosion and flown to Middlemore hospital in a serious condition."