11 a.m. update: Tampa Police Department's Marine Patrol has recovered a body in the bay off the beach at Cypress Point Park.

Authorities said they believe the body is that of Robert A. Lucas.

PREVIOUS STORY: Crews resumed the search Sunday morning for a swimmer missing since Saturday afternoon.

Tampa Police said Robert A. Lucas was last seen just before 3 p.m. in the bay at Cypress Point Park.

In addition to police, the U.S. Coast Guard and Florida Wildlife Commission are involved in the search.

Lucas, 36, was wearing black shorts and no shirt the last time family members saw him.

We'll post updates as they become available.