A U.S. Coast Guard aircraft spotted a sinking boat carrying up to 33 suspected migrants Wednesday, two days after U.S. authorities pulled 11 Cuban migrants from the waters off the coast of Florida. "They were spotted by a Coast Guard aircraft that was up there searching on the other migrant case," said spokesman Gabe Somma. He said there were up to 33 people on the boat, up from the 25 originally estimated by the Coast Guard. Two men still are missing from the group found clinging to debris from their wrecked raft on Monday. The Coast Guard still is searching waters of Florida's southeastern coast, Somma said.