TDs Mick Wallace and Clare Daly have been arrested after entering an unauthorized zone at Shannon Airport.
The pair accessed the apron at Shannon at around 12:20 this afternoon.
It's understood both were wearing high-visability vests at the time, and according to anti-war activists were planning to inspect a US military aircraft.
The two TDs were arrested for trespassing, and were brought to Shannon Garda Station but have been released without charge at around 1:30.
A file is to be sent to the Director of Public Prosecutions.
Gardaí are not commenting on the identity of the two people that have been detained, but have confirmed that a man and woman have been arrested.