PHILADELPHIA (CBS) – Two people have been arrested and a warrant issued for a third following an assault at a Philadelphia elementary school.

On March 25 around 2:30 p.m., police responded to Jay Cooke Elementary at 1300 W. Louden Street for reports of an assault (see previous story).

Upon entering, police were told by School Police that the parents of a student who attended the school had entered the building along with several additional family members and had assaulted ten students and three school officials. The suspects then fled the school.

One person had to be taken to the hospital for a concussion.

On Friday, police said they’d arrested 42-year-old Marion Oliver, of N 16th Street, and her 14-year-old daughter. Both are charged with 12 counts of Simple Assault, Recklessly Endangering Another Person, Conspiracy and related offenses.

A warrant was also issued for 44-year-old Richard Jordan, whose last address was on the 4900 block of Penn Street. Anyone with information on his whereabouts should contact police immediately.

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