Shark warning signs were taken down yesterday at west-side city beaches from Nanakuli to Makaha, officials said.

The signs went up Friday after a woman was bitten on the forearm by what may have been a tiger shark off a beach near Lahilahi Point in Makaha.

The woman, whose name has not been released, was recovering yesterday at The Queen's Medical Center.

Fire department and Coast Guard helicopters conducted a morning flyover and no sharks were spotted, said fire Capt. Robert Main.

It was the state's first shark attack of the year.

Beachgoers should also be aware that box jellyfish could begin their monthly influx in waters along south-shore beaches today, said Bryan Cheplic, spokesman for the city Emergency Services Department.

"We're asking people to check with the lifeguard before going into the water," he said.