[UPDATES BELOW] An unidentified woman was repeatedly stabbed in the subway system at the Lexington Avenue / 59th Street station this morning, shortly after 10 a.m. The circumstances leading up to the stabbing are unclear at this point—we don't yet know if she was stabbed on the platform or on a train—but according to the NYPD, the perpetrator is believed to be an "emotionally disturbed" female who is now in police custody. The victim, who reportedly ran into Bloomingdale's for help, was stabbed multiple times in the abdomen and shoulder. She is currently in stable condition at NewYork-Presbyterian/Weill Cornell Medical Center.

Uptown 6 trains were running express between 42nd Street and 125th Street for about a half hour after the incident. An MTA spokesman says normal service has since resumed. We'll update as more information becomes available.

070813supect.jpgUpdate 12:20 p.m.: An MTA employee who witnessed the attack, which occurred on the uptown 6 train, says it was random and unprovoked. "She was crazy," the employee tells the Daily News. "She was just targeting random people. She stabbed a woman in the shoulder and stomach with a steak knife." And a Bloomingdale's employee tells the News, "The lady that got stabbed was conscious but shaken up. She just said, 'Why me?' It was so random."

The alleged assailant, believed to be in her 20s, also punched a 19-year-old woman in the face. ABC 7 has footage of the suspect being carried out of the station in a body restraint to keep her legs and arms immobilized. She's been taken to Bellevue for evaluation. One good Samaritan named Charles Williams tells ABC 7 he helped restrain the woman until police arrived.