THE TDs Mick Wallace and Clare Daly have been released without charge having earlier being arrested at Shannon Airport.

It is understood the pair had been attempting to inspect US military aircraft at the airport. The two aircraft were parked away from the main terminal.

It's time the Irish people said no to Shannon being used as a US Military Airbase... pic.twitter.com/TK5kVnSML8 — Mick Wallace (@wallacemick) July 22, 2014

The two TDs were taken into custody at Shannon garda station, but have since been released.

A file is to be sent to the Director of Public Prosecutions.

“Two people – a male and a female – were arrested by airport police after breaching a security fence,” a garda spokesman told Independent.ie

A spokesman for Shannonwatch told Independent.ie that Mr Wallace and Ms Daly had been arrested at approximately noon after they had attempted to approach two US military planes “to inspect them”.

When asked why the pair had wanted to inspect the aircraft, the Shannonwatch spokesman said that it may have been to determine if the aircraft were carrying weaponry.

Ed Horgan, an anti-war campaigner with the Peace and Neutrality Alliance and the Shannonwatch group, said he witnessed the two arrests.

"The aircraft were being guarded by the Irish army and Clare Daly and Mick Wallace were arrested by airport police quite close to the aircraft," Mr Horgan said.

It is understood the two TDs were attempting to inspect a US Hercules transport plane and a second plane which is believed to be a Boeing 737 converted for use by the US military.

The TDs have campaigned for US military planes landing and refuelling at Shannon Airport to be searched independently to verify that allowing military aircraft at Shannon does not interfere with Ireland's status as a neutral country.

Meanwhile, Mr Wallace updated his Twitter account throughout the day.

The TD featured both Irish news source’s tweets about himself and Ms Daly’s arrest and also featured photos from what seems to be Shannon Airport.

“It’s time the Irish people said no to Shannon being used as a US Military Airbase,” he captioned one photo of an aircraft.

“Irish Government must search planes if they want to stop Shannon Airport being used a Military Airbase,” he wrote under another photo.

The photos seem to have been taken at Shannon Airport today before the pair were arrested.

Online Editors