A power outage on the lower level of Grand Central terminal plunged many surprised commuters into semi-darkness around 9:30 this morning, according to a spokesman for the MTA [update below].

The authority added that some ticket machines "may be affected," and that trains schedule to arrive on the station's lower level are being rerouted to the upper level. According to PIX11, only the terminal's main entrance is open. All trains are running on time, albeit on a holiday schedule for Presidents Day.

For commuters likely already sad to be working on a government holiday, passing through the darkened halls has been decidedly spooky.

We will update with any additional information as it becomes available.

UPDATE: A spokesman for the MTA confirmed that today's power outage was caused by a broken water pipe in a "non-public" area of the terminal. According to Grand Central's official twitter, all terminal stores are closed until further notice, as well as the terminal entrances on Lexington Avenue. Trains are still running on a normal holiday schedule without delays, but The Darkness has not yet been lifted.