Shark warning signs posted Tuesday afternoon have been taken down at Nanakuli Beach Park.

Lifeguards posted the signs  after the sighting of an 8-foot shark at 5 p.m,.

Two hours later, lifeguards removed the signs because there was no further indications of shark activity, Emergencys Services Department spokeswoman Shayne Enright said. 

Enright said the shark was non-aggressive and seemed to be cruising.

It was the second shark sighting in Nanakuli this week.

Lifeguards reported a 10-foot shark, acting aggressive and jumping out of the water, at Nanakuli Beach Park Monday.