TEQUESTA, Fla. (AP) -- NFL Hall of Famer Joe Namath is offering a $100,000 reward in the search for two teenage fishermen along Florida's Atlantic coast.

Perry Cohen and Austin Stephanos did not return as scheduled Friday from a fishing trip. Both are 14 years old, and they were last seen Friday afternoon in the Jupiter area buying fuel for their 19-foot boat.

Perry is Namath's neighbor in Tequesta. Namath held a news conference Sunday with the boys' families to announce the reward and appeal for information that could help the search.

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Namath said both boys are skilled boaters. He said, "We've got to believe in their wherewithal."

Coast Guard air and sea crews have expanded their search farther north along the coast. The search so far has covered over 14,000 square nautical miles.