DENVER (AP) – Ten marijuana stores have complied with a federal order to shut down or face federal legal action.

U.S. Attorney John Walsh sent letters to the stores giving them until midnight Monday to comply. In a statement Tuesday, Walsh says all 10 have stopped their operations.

The latest round is the third wave of letters sent by Walsh to a total of 57 marijuana businesses in Colorado that are within 1,000 feet of schools. Walsh says a vast majority of marijuana stores meeting that criteria have closed.

Another round of letters is planned.

(© Copyright 2012 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)