SEATTLE (AP) — Military jets scrambled to escort an Alaska Airlines flight into Seattle and authorities took a passenger off the plane Thursday night, after a caller told the FBI that a possible hijacker was aboard, officials said.

FBI agents interviewed but did not arrest the passenger aboard the flight from Kona, Hawaii.

"We're not anticipating an arrest," Seattle FBI spokeswoman Ayn Dietrich said late Thursday night.

Two F-15 jets from the Oregon Air National Guard escorted Flight 819 in to Seattle-Tacoma International Airport after a threat call was received at the Honolulu FBI office.

Agents talked to the unidentified man for nearly two hours, Dietrich said. She described him as cooperative.

"I can tell you any threats or tips we receive we take seriously in case they're a credible threat," she said earlier. "We certainly get a number of calls that turn out to be not credible."

The agency's focus now switches to the caller.

A caller told the Honolulu FBI office on Thursday afternoon that a man aboard the flight was a possible hijacker, said FBI spokesman Tom Simon in Honolulu.

Simon declined to provide any details about the caller.

"We reserve the right to investigate what appears to be a hoax phone call," he said late Thursday night. "We'll let the world know if any charges are filed. Continued...