Newspapers or TV stations can enter into agreements between the Associated Press and their organization for content licensing. However, since you asked only about images, I'm assuming that you're not an online newspaper.
Besides for that, there are two options:
First, and I quote the AP:
If you are not a member of The Associated Press, but want to receive AP news for your Web site or wireless service, company intranet, desktop or other interactive application, you can contact AP Digital by e-mail at APDigital@ap.org.
You may be able to discuss multiple image licensing with AP Digital, if that is what you want (as I understand from your comment on BenV's answer).
Second, as John Conde points out, AP Images may be able to help you out as well, and they may also be able to answer questions about multiple image licensing.
Or, if for some odd reason you should prefer to use traditional mail (dunno why since you're here on Webmasters, but still), AP's licensing division can be reached at:
The Associated Press
450 W. 33rd St.
New York, NY 10001