Big Island police responded to a report of a shark bite in Kiholo Bay near North Kona Wednesday evening.
Fire crews responded at around 5:10 p.m.
Fire officials say the victim is a 43-year-old man with a shark bite to his lower right arm.
The man was surfing with a friend at Kiholo Bay when he was bitten about 200 yards off the north side of the bay. He was transported to North Hawaii Community Hospital.
Department of Land and Natural Resources officials say the man was bitten by a 15-foot-long tiger shark.
DLNR says the man also suffered injuries to his knee.
A worker at a private home on the north side of the bay called 911.
A fire helicopter went to scan the waters, but nothing was seen.
Shark warning signs are posted at the entrance gate to Kiholo Bay State Park.
The park will remain closed until noon Thursday.