A Miami mom was arrested and charged with trying to sell her 8-month-old son for $7,000, authorities said Monday.

Kenia Quiala Bosque, 30, was arrested Sunday after an investigation by the Monroe County Sheriff's Office and Florida Department of Law Enforcement.

Authorities say Bosque, of Hialeah, had arranged to meet a Monroe County man in Miami on Saturday to exchange the child for the money.

When the Monroe County Sheriff's Office received a tip about the transaction, the FDLE arranged to have an undercover agent be at the baby handoff.

But after Bosque failed to show up, and fearing for the child's well-being, deputies and agents went to her home and had enough evidence to make an arrest, authorities said.

"We are just so glad we were able to obtain this information in time to intervene before anything could happen to endanger this child," Sheriff Bob Peryam said in a statement.

Bosque was booked into Miami-Dade County jail and was being held on $5,000 bond Monday. It was unknown whether she has an attorney.

Her children were placed in the custody of relatives, authorities said.