Hospitals awaited waves of more patients, but, in an ominous sign, fewer came than expected. "I think so many people are dead. It's a bad sign that there are no mass casualties," said Dr James Dillard at St Vincents Hospital in lower Manhattan.
Officials at St Vincent's said about 350 victims had arrived. Four people had died and more than 50 had serious trauma or injuries, Dr Richard Westphal told CBS television.
He said about 45 of the injured were emergency workers.
Bush said in his address that the American economy would be "open for business" on Wednesday. But New York, its financial center, was closed.
Giuliani said the whole of the lower part of the island of Manhattan was closed for business and he urged people to stay out of the city on Wednesday unless it was essential that they came to work.
Financial markets were scheduled to remain closed on Wednesday for the second day.
Late on Tuesday and early on Wednesday, the city, which is normally bustling late into the night, was more like a ghost town. Only emergency vehicles and a few taxis circulated and convoys of trucks carrying cranes, diggers and other equipment moved toward the disaster area.
RSS