The U.S. Coast Guard Sector Corpus Christi suspended a six-hour search for a missing kayaker off South Padre Island after covering 168 square nautical miles.

According to the Coast Guard, the search began after concerned beachgoers and lifeguards near Beach Access #6 called around 4:30 p.m. Saturday about a man in a kayak about 400 yards offshore before losing sight of him.

While the empty kayak remained visible, the paddler was nowhere to be seen, according to the Coast Guard.

The Coast Guard deployed two aircrafts and a boat crew to search the area alongside Cameron County park rangers and beach patrol units.

After six hours, the Coast Guard and partner agencies suspended its search, pending further developments.