Sad news from Embarcadero station this morning: according to ABC7, there is a person under a BART train at the station, in what BART is calling a "major medical emergency." No other details have been given on the person or their condition.

The incident has significantly affected trains, with BART instituting single-tracking at Embarcadero as police and firefighters responded to the scene. Trains arriving from the East Bay will not stop at Embarcadero. We'll keep you posted on the person's condition and the status of the trains. 

Expect up to 30 minute delays in the San Francisco and East Bay directions due to a major medical emergency at Embarcadero.

— SFBART (@SFBART) May 23, 2016

We appreciate everyone's flexibility and patience as we move trains into a new configuration to mitigate delays.

— SFBART (@SFBART) May 23, 2016

Update, 12:00pm: BART is resuming normal service. KCBS reports that the victim is a man, who fell off the platform and landed between tracks before being struck around 10:30am. It took firefighters an hour to free him, and he was transported to the hospital. Firefighters say he was "conscious and talking," and apparently suffered only minor injuries. 

Man hit by @SFBART train at Embarcadero is "conscious and talking...incredible" says firefighter pic.twitter.com/cmgphBNrE1

— Doug Sovern (@SovernNation) May 23, 2016

Normal service resuming through DTSF. Residual delays systemwide may remain. We appreciate your patience & apologize for the inconvenience.

— SFBART (@SFBART) May 23, 2016