A terminal at Melbourne Airport was evacuated last night following a threat reportedly made against Tigerair. 

In the incident which happened at about 9pm, people were removed from Terminal Four, while several planes were grounded.

The area was reportedly declared safe by Victoria Police just after 5am 
today.

No other terminals were affected in the closure.

Meanwhile, Melbourne Airport spokesperson Anna Gillett told The Age newspaper that the Tigerair flights were cancelled as authorities responded, but would not provide an exact reason for the seven-hour shut down.

Gillett said the airport does not release details on security issues.

Tigerair Australia chief executive Rob Sharp in a statement said: "Tigerair
takes all security related alerts extremely seriously".

"All necessary steps were taken by the airline to quickly involve the relevant authorities and implement precautionary measures to ensure passenger
s' afety," he said.

- Bernama