Fourth of July weekend, Philadelphia police say 19 shootings occurred across the city, leaving 46 people injured and six people dead.

Three adults were killed and ten others injured, including two minors, after a shooting in South Philadelphia’s Grays Ferry area early Monday. Authorities are investigating whether it was linked to an earlier police response on the same block.

The holiday initiative follows on the heels of several other high-profile traffic enforcement crackdowns from the Mayor John Whitmire administration.