A militant involved in the March 22 Brussels terror attacks had worked in the European Parliament building in the Belgian capital, a spokesperson revealed Wednesday.

The unidentified extremist worked as a cleaner for an outside contractor.

“The European Parliament confirms that seven and six years ago, one of the perpetrators of the Brussels terrorist attacks worked for a period of one month for a cleaning company which was contracted by the European Parliament at the time,” Parliament spokesman Jaume Duch Guillot said in a statement. “As a student, he held a summer holiday job cleaning at the Parliament for one month in 2009 and one month in 2010. Those were the only instances he worked at the Parliament.”

The suspected terrorist was found to have no criminal record when he was hired, the statement said.

It’s unclear if the man who was employed was one of the bombers who blew themselves up during the attacks or was an accomplice. Authorities are still hunting several people connected to the bombings, for which the Islamic State terror group claimed responsibility.

The dual bombings, at Zaventem Airport and Maelbeek metro station, killed 32 and injured more than 300 others.

The cleaning contractor who employed the militant no longer provides services for Parliament and was changed three years ago, Politico Europe reported.