Adjournment Of Special Meeting Of Stockholders To Vote On Proposed Acquisition Of ACM Municipal Securities Income Fund, Inc. By Alliance National Municipal Income Fund, Inc.

NEW YORK, March 15 /PRNewswire-FirstCall/ -- A Special Meeting of Stockholders of ACM Municipal Securities Income Fund, Inc. ("ACM Municipal Securities" - NYSE: AMU) scheduled for today to consider the proposed acquisition of the assets and the assumption of the liabilities of ACM Municipal Securities by Alliance National Municipal Income Fund, Inc. ("Alliance National Municipal" - NYSE: AFB) (the "Acquisition") was convened as scheduled on March 15, 2007, but has been adjourned to allow additional time for the solicitation of proxies with respect to the preferred stockholders of ACM Municipal Securities voting as a separate class regarding the proposed Acquisition. The Acquisition was previously approved by ACM Municipal Securities' preferred stockholders and common stockholders voting as a single class at a Special Meeting held on February 22, 2007. However, approval of the Acquisition is also contingent on the approval of the preferred stockholders voting as a separate class. Only stockholders of record on December 15, 2006 will be entitled to vote at the reconvened Special Meeting.

ACM Municipal Securities is a diversified, closed-end U.S.-registered management investment company advised by AllianceBernstein L.P.