The Coast Guard spent most of Sunday searching for a 22-year-old man who went missing in the waters at Surfside Beach.
Elijah Posada, an active member of the U.S. Air Force, was last seen around 12:30 p.m. wearing a maroon shirt.
Posada was at the beach with family members and was swimming about 100 feet from the shore when he was pulled under the water, Coast Guard Sector Houston-Galveston watchstanders were told.
Officials suspect Posada was caught in a rip current.
The Coast Guard issued an urgent marine information broadcast and launched a Coast Guard Station Freeport 29-foot Response Boat-Small boat crew and a Coast Guard Air Station Houston MH-65 Dolphin helicopter crew.
"Every case is unique and different. It really depends on how much area has been searched, the weather and a number of other complex factors that go into how long the search will last," said Petty Officer Hause of the Coast Guard Public Affairs Detachment in Houston.
Anyone with any information is urged to contact the Sector Houston-Galveston command center at 281-464-4854.
Involved in the search are Coast Guard Sector Houston-Galveston, Coast Guard Air Station Houston, Coast Guard Station Freeport, Coast Guard Cutter Tiger Shark, Surfside Police Department and the Brazoria County Sheriff's Office.