Update 4:41p.m.:
77 people are in custody following a 4-day operation in West Michigan by the federal Immigration and Customs Enforcement office.
Federal agents arrested the men and women in 7 counties; from Ludington south to Michigan, Indiana line.
Khaalid Walls is with the federal Immigration and Customs Enforcement's Office. He says they were arrested for their illegal immigrant status, but a few, he says face criminal charges.