Two migrants were taken into custody after coming ashore Thursday morning in Martin County, according to the U.S. Border Patrol.
A man and woman from Haiti were detained and are being questioned.
It's believed they were dropped off by a boat.
The discovery sparked a search by land and sea by the Martin County Sheriff's Office, U.S. Customs and Coast Guard.
Anyone who has information is urged to call the Border Patrol at 877-772-8146.
Two migrants were also found on Miami Beach, according to the Miami Beach Police Department. Both are male and in good condition, the police department said.
Video of the vessel at 41st Street beach where two male migrants came ashore. #news pic.twitter.com/4NhlTaRRma
— Miami Beach Police (@MiamiBeachPD) July 7, 2016