No passengers were on board and there were no reports of injuries on the ground.
Normal operations resumed at Seattle-Tacoma airport by about 9:30 p.m. local time, airport officials said. The aircraft crashed on Ketron Island in Puget Sound.
Footage shows pilot attempt the aerial maneuver after he hijacked the plane from Seattle-Tacoma International Airport in Washington state. The mechanic was either "doing stunts in air" or "his lack of flying skills caused crash into [Ketron] Island". The Sheriff's Office said they were looking into his background.
PCSO confirmed in a tweet that the person is a "suicidal male" and is a 19-year-old Pierce County resident.
Alaska Air said the F-15s were scrambled from a Portland air base.
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A field hospital has also been established near an evacuation centre catering to more than 500 people in the village of Tanjung . Muhamad Juanda, who narrowly escaped the mosque collapse, said 100 people were praying inside when the earth began to roll.
A Horizon Air airplane was stolen from SeaTac Airport on August 10, 2018 and crashed on Ketron Island where it sparked a fire.
In an update on its website, Alaska Airlines said that it believed a "ground service agent" employed by Horizon Air was responsible, and that the plane had been taken from a maintenance position and was "not scheduled for passenger flight".
Some Seattle-bound flights were diverted to Vancouver.
Alaska Airlines confirmed the aircraft belonged to its subsidiary Horizon Air and was a Bombardier Dash-8 (Q-400) turboprop aircraft that likely had no passengers on board.
The US Coast Guard said it was aware of the situation happening at SeaTac Airport, NBC News reported.
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An earlier report from industry group the American Petroleum Institute had suggested inventories fell by 6 million barrels. Indian Oil is still awaiting direction from its government on Iranian crude imports, Sharma said.
He also said he was "just a broken guy, got a few screws loose I guess".
"I just want to keep talking to you and if you keep going to the Olympic mountains we can't hear you", the controller says.
Gov. Jay Inslee said in a statement fighter pilots flew alongside the plane "and were ready to do whatever was needed to protect us".
Later he says he's going to land it in a "safe manner" but then asks if the plane can do a barrel roll. Wrote one man on Twitter, "As terrible as this is, I have to say this: an aircraft mech pulled off a barrell roll in a twin engine turbo prop commuter plane".
In a recording posted to Broadcastify, the pilot can be heard calmly chatting with Air Traffic Control. I would like to apologise to each and every one of them. More information as we learn more'. They pursued the aircraft before it went down on Ketron Island between Tacoma and Olympia. "I was kind of hoping that was gonna be it".
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Officers had gone to the salon to arrest a second employee, but that worker was not there at the time. The salon employees began to assault the three black women with broomstick, dustpans and their hands.
Two F-15s were scrambled from OR to give chase to the plane.