A man in his 40s died Saturday morning after forcing his way past a security checkpoint at Honolulu International Airport, according to The Washington Post.
Airport security officials said the man then ran toward an outdoor walkway where planes park. There, he was quickly stopped by security, the Honolulu Star-Advertiser reports.
"Even after he was detained, there was still a struggle and the suspect remained combative," Tim Sakahara, with Hawaii's Department of Transportation, told Hawaii News Now.
After being taken into custody, the suspect became unresponsive and rescue workers tried to revive him. The suspect was taken to a nearby hospital where he died, the department said in a press release.
The Honolulu Police Department has opened an unattended death investigation.
Hawaii News Now reporter Mahealani Richardson was at the airport when the incident happened and took a video there shortly after.
"It was really scary during those moments," Richardson said in the video. "We just had to duck down and cover ourselves because we didn't know if the suspect was going to come at us. We had to protect ourselves."
Authorities have not released the man's name or his cause of death. It's unclear whether alcohol or drugs were involved.
In addition, one security guard was hospitalized with head injuries after helping take down the suspect.