UPDATE -- Killeen Police have now figured out how the explosives got into the rental truck at the airport.
Police say the device was inadvertently left in the rental vehicle by a previous lessee, who is an explosives instructor. The device was an explosive training aid.
The last person to lease the vehicle, who was detained for an interview, cooperated fully with the investigation and was released.
According to the Killeen-Fort Hood Regional Airport Officials, four flights encountered delays this morning, affecting approximately 171 passengers.
This after a package containing explosives was found in a truck near the airport, and they immediately put the airport on lockdown at around 10:30 a.m.
Employees on the scene tell KWKT they were told to guard the doors, but did not know what was happening.
Police Capt. Margaret Young said it's better to be safe than sorry.
"As a police officer, your first concern is to make sure everyone is safe. Whether its going to turn out to be something that is actually dangerous or not, it doesn't matter, your first concern is for the public safety. Then, the next thing you want to do is get the experts in there," said Capt. Young.
Police do not anticipate filing any criminal charges at this time in connection to this incident.
KILLEEN - Killeen police confirm the Killeen-Ft. Hood Regional Airport was put on lockdown for a few hours Monday after a suspicious package was reported.
Officials say the package was found in a truck near the airport, and they immediately put the airport on lockdown at around 10:30 a.m. Employees on the scene tell KWKT they were told to guard the doors, but did not know what was happening. Police confirm the package contained bomb-making material.
Authorities detained a suspect, no word on his identity yet.
The airport was closed and partially evacuated, but reopened at around 12:30 p.m.
The investigation is ongoing. KWKT will bring you more information as it becomes available.