SANTA BARBARA (CBSLA.com) — Two recent sightings of great white sharks off the coast of Santa Barbara have pushed authorities to post warning signs along Central Coast beaches.

Surfers spotted an approximately six-foot-long shark near Leadbetter Point around 5:20 p.m. Tuesday, Santa Barbara Waterfront officials said.

Based on its size and description, officials later determined it was a great white.

No beaches have been closed, however warning signs have been placed at 14 locations along the coast.

Signs will stay up through Thursday baring additional sightings.

Over the weekend, a seal reportedly was bitten twice by a great white, but survived. It is unclear if both sightings were the same shark.

On Monday, conservation group Oceana asked the federal government to put the Pacific coast’s great white shark population on the endangered species list.