NEW SMYRNA BEACH, Fla. -- Authorities say a third person has been bitten by a shark in as many days while surfing in the Atlantic Ocean off New Smyrna Beach.

Volusia County Beach Patrol spokesman Jack Driskell says 18-year-old David Alger was getting on his board when a shark clamped down on his left foot shortly before noon Monday.

The encounter left him with foot lacerations, which were treated at the scene before he drove himself to the hospital.

Authorities cleared the area of swimmers and surfers because other sharks were spotted.

Over the weekend, two other surfers were bitten by sharks at the beach, but they didn't sustain life or limb threatening injuries.