The Arlington County Fire Department bomb squad is investigating a suspicious package at Reagan National Airport.

Bomb squad personnel were called in to take a look at a package that was going through screening at the airport’s cargo area, according to Metropolitan Washington Airports Authority spokeswoman Kimberly Gibbs. TSA agents identified the package as suspicious and felt that it “needed further investigation,” Gibbs said.

There has been no disruption to passenger air travel as a result of the investigation, according to Gibbs. She was unable to say what kind of cargo is typically shipped through the airport.