ORLANDO, Fla. -- A Jamaican man behavior specialists spotted acting suspiciously was detained and arrested after components used to make pipe bombs, unknown liquids and bomb-making literature were found in his luggage at Orlando International Airport.

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IMAGES: Man Taken Into Custody

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Officials said federal behavior identification agents noticed something about the man's body language that prompted officers to move in near the Virgin Atlantic and Jamaica Airlines ticket counters Tuesday afternoon.

The passenger, who the FBI identified as Kevin Brown, 32, was immediately taken into custody and a portion of the Terminal A in front of Virgin Atlantic was closed to passengers.

During a search of Brown's luggage, airport authorities found two galvanized pipes, end caps, two small containers containing BBs, batteries, two containers with an unknown liquid and bombing making literature, FBI officials said.

Brown faces charges of carrying a weapon or explosive on an aircraft.

"This appears to have been a serious matter with the potential for tragic consequences, and the incident is being thoroughly investigated," ranking member on the Committee on Transportation and Infrastructure U.S. Rep. John Mica said in a written statement. "It's probably one of the most serious security incidents at Orlando International Airport ever."

Tuesday night, an FBI official said Brown was apparently living on the streets in Orlando.

It was not known if Brown had legal representation.

Witnesses: Man Acted 'Crazy'

Passengers waiting to board flights at Orlando International Airport Tuesday said they noticed Brown acting suspiciously before agents moved in.

"He looked rather crazy," a passenger said. "He was rocking left and right and up and down. He looked a little wacko."

Brown was scheduled to fly on Air Jamaica Flight 80 to Montego Bay, Local 6 reported. The flight departed Tuesday afternoon after it was cleared by security.

Large crowds formed around the portion of the airport and traffic backed up on nearby streets for most of the afternoon. Only 11 flights were affected during the incident.

TSA officials said flight operations were operating normally and both security checkpoints were open Tuesday night.

The FBI is working with the Orlando Police Department, the Transportation Security Administration and several other agencies to investigate the incident.

Anyone with information about the matter is urged to contact the FBI office in Tampa at 813-253-1000.

Watch Local 6 News for more on this story.