From the NY Times article updated at 2:47 PM Eastern, at the end of the article:

"A spokesman for President Bush said the United States would offer humanitarian assistance."

That's it.

By contrast, the BBC reported 5 hours ago that seven workers from the International Rescue Corps, based in Grangemouth, were already on their way to the city of Bam.

I find it hard to believe that the President couldn't be reached for comment, when he was en route to the ranch on Air Force One with the entire White House press corps.