Morgan Stanley Income Securities Inc. Releases Monthly Portfolio Holdings Information.

NEW YORK -- Morgan Stanley Income Securities Inc. (NYSE: ICB), a closed-end mutual fund advised by Morgan Stanley Investment Advisors Inc., announced that today it will post selected information regarding its holdings to its public web site at www.morganstanley.com/im. The posting will include

information relating to the Fund's top 10 portfolio holdings for the month ended June 30, 2005. The Fund intends to make its top 10 holdings information available approximately 15 business days following the end of the most recent month. You may obtain a hard copy of this report, and future quarterly reports as they become available, by either accessing the web site or calling the number below.

For more information call: 1-800-869-3863.

Investing involves risk and it is possible to lose money on any investment in the funds.

Morgan Stanley Investment Management, together with its investment advisory affiliates, has over 400 investment professionals around the world and more than $416 billion in assets under management or supervision as of March 31, 2005. These entities offer wealth management services to a diverse client base, which includes governments, institutions, corporations and individuals.

Morgan Stanley is a global financial services firm and a market leader in securities, investment management and credit services. With more than 600 offices in 28 countries, Morgan Stanley connects people, ideas and capital to help clients achieve their financial aspirations.