The Attorney General has more so called sanctuary cities on his list and he's telling them to comply with immigration rules if they want to participate in a new crime reduction program.

FOX's Jessica Rosenthal reports:

The Justice Department sent letters to four cities struggling with violent crime, telling them to verify that they work with federal immigration authorities if they want to participate in the Department's Public Safety Partnership program.

Baltimore, Albuquerque, Stockton and San Bernardino were all sent letters. They have two weeks to prove they work with federal immigration officials if they want to be considered for the crime fighting program.

When Attorney General Sessions announced the Public Safety Partnership program earlier this year, he said its intent is to help local authorities pursue violent criminals, especially those involved in gun crime, drug trafficking and gang violence.

The police departments listed did not immediately respond to request for comment.

Jessica Rosenthal, FOX News.

Follow Jessica Rosenthal on Twitter: @JessicaFOXNews