Special security teams were dispatched for a crackdown on travelers at Portland International Airport.

Newschannel 8 learned Tuesday Homeland Security has deployed federal agents and local police known as “VIPR” teams to PDX.

The “Visual Intermodal Protection and Response” teams have been deployed nearly 84 times in the past year.

The agency dispatches the teams around the country, especially during peak travel days and special events -- but officials said there was no specific threat.

They'll be on patrol at the airport for two days starting Wednesday morning.

The Transportation Security Administration met behind closed doors Tuesday and would not comment on the operation.

Security may also involve random vehicle inspections.

There was no word on how it may affect travel times.

(KGW Reporter Kyle Iboshi contributed to this report)