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.

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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.

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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.

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