UPDATE 6/19 4:34 P.M.

Tim Sakahara, spokesperson for DOT says it was not a laptop, but an external battery charger that malfunctioned, and a foam neck pillow melted, contributing to the smoke and odor.

Southwest Airlines says the incident affected six flights.

"We provided Customers on the impacted flights a $100 Gesture of Goodwill as an apology for the inconvenience," said a spokesperson for Southwest.

UPDATE 7:36 A.M.

The Transportation Security Administration released the following updated statement on Wednesday:

“TSA screening operations at Daniel K. Inouye International Airport have returned to normal following Tuesday evening’s evacuation and re-screening of travelers departing Terminal 2. Around 2:10 p.m. HST Tuesday, a laptop in a traveler’s carry-on luggage overheated and emitted smoke in the security checkpoint. This created confusion and some travelers breached the security checkpoint by running into the sterile area of the airport without being screened.

Following the breach and subsequent evacuation, TSA conducted a security sweep of the airport and aircraft using explosive detection canines. Around 6 p.m., TSA reopened the security checkpoints in Terminal 2. TSA extended the shifts of on-duty TSA officers to ensure security lanes were staffed and, by 9 p.m. HST, all TSA screening operations at all checkpoints had returned to normal.

The TSA confirms that early reports of an active shooter were unfounded and that the Hawaii State Sheriff's office took possession of the laptop that emitted the smoke.

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UPDATE 5:09 P.M.

The TSA released the following statement regarding the evacuation of Terminal 2 at Daniel K. Inouye International Airport:

“Around 2:10 p.m. HST, a laptop in a traveler’s carry-on luggage overheated at a security checkpoint in Terminal 2 at Daniel K. Inouye International Airport. This created confusion and some travelers ran into the sterile are of the airport without being screened. Out of an abundance of caution, TSA leadership made the decision to evacuate Terminal 2 and re-screen all passengers.” 
 
Additional information TSA is releasing is that travelers Terminal 2 is currently closed and travelers are being held in Terminal 1 and the bridge between Terminals 1 and 2.

According to TSA officials, the reports of an active shooter are unfounded. 

UPDATE 4:51 P.M.

Chaos ensued at the Daniel Inouye International Airport Tuesday afternoon after a false alarm caused panic.

Just before 5 p.m. on Tuesday there is still a lot of chaos at the Daniel K. Inouye International Airport.

Thousands of people are lined up at Terminal 2 and all flights have been delayed because everybody in the entire terminal needed to be re-screened.

KITV4's Tom George spoke with airport officials who say this all happened around 2 p.m. at the TSA line when a laptop exploded. 

The explosion caused a large response and witnesses in the TSA security line say that's when things got out of control.

"Next thing you know the smoke died down and I thought everything's okay then the second smoke started to come out already with some kind of noise like what's going on so they told us get away. So once we hear that word everybody panicked, stampede rushing going out of the gate," Ray Lumang, who witnessed the ordeal, said. 

In the midst of the chaos, some people actually ran through security without being cleared from the checkpoint and that's why everyone here has been evacuated.

Everyone in Terminal 2 will need to be re-screened and those flights are being held and delayed. 
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After false reports of an active shooter situation at the Daniel K. Inouye International Airport, the Department of Transportation has confirmed that there is no threat.

This is a developing story, more details to come as they surface.