Brisbane Airport's international terminal was evacuated on Saturday amid reports that a man made a bomb threat after entering the building armed with knives.
Specialist police have taken the man into custody, and the terminal reopened after police officers finished conducting a clearance search.
The man has been taken to a police station, where he will be interviewed.
The incident is not thought to be terrorism related.
"It is a domestic violence related situation," Queensland Police said.
Aircraft and trains to and from the international terminal were stopped during the evacuation, the force added.
There are no reported injuries to any members of the public or police officers.
"Police have made a declaration under the Public Safety and Preservation Act tonight at Brisbane Airport due an emergency situation," a spokesperson for Queensland Police said in a statement.
The Australian Federal Police was also in attendance at the scene.
The airport's domestic terminal remained in operation throughout.
"The public are thanked for their on-going co-operation and patience," a spokesperson for Queensland Police said.
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