Courthouse protests have caused a brief interruption in the preliminary hearing of three teenagers charged in the beating death of a Mexican immigrant in a small Pennsylvania town.

About 40 protesters outside the courthouse in Pottsville have been told to keep quiet or they'll be forced to move. The protesters are from workers and immigrants' rights groups.

A defense attorney complained about the distraction and the hearing was recessed for several minutes until the protesters quieted down. There have been no arrests.

Luis Ramirez was attacked July 12 when he crossed paths with a group of teens in the town of Shenandoah, about 80 miles northwest of Philadelphia.

A judge is deciding if there is enough evidence against the three to send the case to trial.