Five people were charged Tuesday for their involvement in an alleged human smuggling operation after a small boat capsized off the San Diego coast Monday morning, according to court documents filed Tuesday.

The U.S. Attorney’s Office in the Southern District of California announced Tuesday it is charging five Mexican nationals in connection with a boat of migrants that recently capsized in San Diego. At least three migrants died and one missing person is “presumed dead” after the maritime smuggling incident occurred on Monday.