UPDATED 2:48 p.m.
A 68-year-old Waikoloa man was bitten on his hip and buttocks by a 12-foot tiger shark at ʻAnaehoʻomalu Bay in West Hawaii this morning.
The man was swimming about 400 yards offshore at about 8 a.m. when the shark bit him.
The swimmer attempted to fend off the shark with a diving knife, and the shark released the man.
The man was assisted to shore and later transported to North Hawaii Community Hospital.
He is in stable condition and will be transported to Oahu for treatment of nonlife threatening injuries, police said.
Warning signs have been put up at the bay and at various resort properties in the area, as well as by ocean sports operators.
This is the second shark/human encounter in the past week in Hawaii. Last Thursday a 60-year-old Washington State woman disappeared off the coast of Maui after her husband and witnesses reported she was attacked by a shark.
An extensive search of the area around Keawakapu Point in South Maui failed to find the woman.