New York City transit officials say they've finished an unprecedented shutdown of the nation's biggest system of subways, buses and commuter rails ahead of Hurricane Irene.
The Metropolitan Transportation Authority said Saturday night it had secured all its equipment and sent employees home. Mayor Michael Bloomberg says the edge of the hurricane has reached the city.
The transit system stopped running at noon Saturday. It's the first time officials have ordered the giant network shut down because of bad weather.
It's unclear when the system will run again. The MTA says even if damage is minimal, restoring service "will be a lengthy process." And flooding, mudslides, fallen trees and downed power lines could dramatically complicate the work.
City subways alone carry about 5 million passengers on an average weekday.