Lifeguards posted shark warning signs at Chun’s Reef on Oahu’s North Shore early this afternoon.

At about 12:43 p.m., lifeguards from the Honolulu Ocean Safety and Lifeguard Services Division spotted an eight-foot shark exhibiting non-aggressive behavior about 200 yards off shore.

The public is being warned of this shark sighting via jet ski patrols in the water, in addition to the signs posted on the beach and megaphone announcements from the lifeguard tower. At the time of the sighting, there were about 30 people in the surrounding water area.