US rescuers searched for a third day on Tuesday for a Hawaii fisherman who went overboard from a boat after hooking a tuna over the weekend.
Mark Knittle, 63, of Captain Cook, was fishing with a friend off Honaunau on the Big Island on Sunday, when he hooked an ahi, or tuna, police said.
“The friend heard Knittle say, ‘The fish is huge,’ then saw Knittle go overboard into the water,” according to a police news release.
READ MORE: Aussie city bracing for record-breaking heatwave
The friend tried to grab the line, but Knittle disappeared within seconds, the release said.
The friend jumped in but couldn't see Knittle.
The search was expected to continue through Tuesday, US Coast Guard spokesperson Petty Officer Ryan Fisher said.
The Hawaii County Fire Department was helping the Coast Guard search from the sea and air.
READ MORE: Aussie troops departing for mission to train Ukrainian fighters
“Usually our incidents like this are along the coastlines. This is a different situation because it's out in the deep," Darwin Okinaka, Hawaii County Fire Department assistant chief of operations, said.
According to police, Knittle and his friend were 6.4km from the Honaunau Boat Ramp.
“If there's a fish that's actually pulling him around, you don't know where he could go," Okinaka said.
Ahi can weigh more than 180kg.
Police described Knittle as weighing 84kg.
Sign up here to receive our daily newsletters and breaking news alerts, sent straight to your inbox.
