Baltimore Mayor Stephanie Rawlings-Blake has signed executive order prohibiting police officers from asking people they come in contact with about their immigration status.

“Police are working to make our city safe. We are not working as immigration agents,” Mayor Rawlings-Blake said.

The announcement comes just days after Immigration and Customs Enforcement (ICE) said it would begin implementing the Secure Communities program in Baltimore–the controversial federal program that sends booking information from local jails to a joint database shared by the FBI and ICE.