Hawaii County lifeguards reopened two Kona-area beaches this morning after an aerial survey of the area today turned up no sightings of sharks.

Two Big Island women were attacked by sharks this week. No one was injured in the incidents Sunday and Wednesday in the Holualoa Bay area. But the attackers, believed to be tiger sharks, tok a bite out of a paddleboard and left a bite mark on a surfboard.

Following the latest attack, Big Island lifeguards closed Kahaluu Beach Park and Laaloa Beach Park.

The county helicopter surveyed the beaches in the area this morning and saw no sharks.

However, shark sighting signs will remained posted through the Memorial Day weekend.