A panga boat was found on the beach at Southern California’s Crystal Cove State Park for the second time in two weeks.

Laguna Beach police tweeted Tuesday that four occupants of the boat were located after a quick search that prompted a lockdown at a nearby elementary school. It’s unclear if they were arrested or if there were more than four people on board.

Pangas are open boats designed for fishing but commonly used by smugglers trying to bring people or drugs north from Mexico.

An empty panga was found at Crystal Cove on June 11. Its occupants ran from the vessel and were not found.

Associated Press