For anyone following the breaking news out of Egypt, Reuters is reporting that the Army has secured the Museum of Egyptian Antiquities in Cairo. The blog Hyperallergic has been trying to verify stories about threats of fire and/or looting to the museum, whose website is down (internet service has been cut off nationwide), and post information about and video of the area as they get it.
UPDATE: While there was earlier looting in Cairo, other cultural heritage sites in Egypt are now reporting damage as well.