At least 10 clergy members were arrested Thursday during a sit-in at Philadelphia Internal Airport to protest the low wages and treatment of workers subcontracted by American Airlines.

Members of the interfaith activist group Philadelphians Organized to Witness, Empower and Rebuild (POWER) staged the sit-in outside the TSA checkpoint in Terminal B. After being issued several warning to leave, eight men and two women were arrested and later issued citations, police said. The demonstration was peaceful and no one was hurt.

POWER live-tweeted the sit-in and reported that 13 clergy members were arrested. A photo of the protest showed 13 people participating. - Robert Moran