The Coast Guard is searching a second day for five people believed to be on a plane that went missing off Florida's Gulf Coast.

A Coast Guard spokesman says that only a two-mile debris field has been found. The twin-engine Cessna was flying from McKinney, Texas, to Tampa when it went down Wednesday afternoon about 20 miles west of Port Richey.

The Federal Aviation Administration says air traffic controllers in Jacksonville lost radio and radar contact with the plane after it reported turbulence at 1:52 p.m. A forecaster at the National Weather Service said there were thunderstorms and lightning in the area at the time, which can create turbulence. Records indicate the plane is owned by Q4 Aviation in Carrollton, Texas. The passengers' identities haven't been released.