Bethune Elementary School, on Old York Road in North Philadelphia, was on lockdown for an hour this morning after staff observed a trespasser inside the school. The lockdown began at 8:45.
Police were called, and an adult male was discovered outside the school. He was arrested for trespassing, and the lockdown was lifted at about 9:45, said Chanice Savage, a district spokeswoman.
It was unclear what the trespasser was attempting to do inside Bethune.