UPDATE: An apparent drug smuggling operation was busted Monday morning on Palm Beach, according to authorities.

Police said a group of undocumented immigrants landed on shore on the north end of the island around 6 a.m., in the area of Mockingbird Trail and North Ocean Boulevard.

Officers set up a perimeter and took three people into custody. Police are still searching for a fourth person.

Also, multiple law enforcement officers have responded to a multi-million dollar home on Palm Beach Monday morning where there appears to be a large pool of blood in the backyard.

During that investigation, an officer working the perimeter heard shots fired nearby.

Police then responded to the 200 block of Bradley Place, where the located one person injured, according to authorities.

Initially it was thought that undocumented immigrants landed near Mockingbird Trail and North Ocean Boulevard.

Officers and Border Patrol found a boat on the beach.