Santa Barbara County officials confirmed Monday afternoon that an estimated 10-foot-long shark was seen early Sunday morning offshore of Goleta Beach, the county’s most popular park.

According to Herman Parker, county community services director, a fisherman working the waters off of Goleta Beach spotted the shark “swimming out to sea” and subsequently reported it to authorities at the Santa Barbara Harbor. Upon learning of the sighting, harbor officials contacted the county, and, by the early afternoon, “swim at your own risk” warning signs had been posted at the beach.

As per county policy, the signs will remain up for at least 72 hours, after which time, as long as there are no additional sightings, they will be removed.

The Goleta encounter comes on the heels of multiple shark sightings in Santa Barbara and Carpinteria.