NEW YORK — The fallout facing Kevin Spacey widened Monday following an accusation that he allegedly made sexual advances on a teen boy, with Netflix pulling the plug on his hit show “House of Cards” and “deeply troubled” producers of the political thriller arriving on set to comfort cast mates.

Executives from Netflix and the show’s producer, Media Rights Capital, said they arrived in Baltimore, where the show is shot, on Monday afternoon to make sure actors and crew “continue to feel safe and supported.”

Though the decision to end the series was announced on Monday, the decision to end the series was made several months ago, according to a person with knowledge of the situation who spoke on condition of anonymity because they were not authorized to discuss the decision.

Spacey is the latest Hollywood man to be named in widening allegations of sexual harassment and abuse in entertainment, media and other industries. The avalanche began earlier this month after the New York Times published a story alleging producer Harvey Weinstein had sexually harassed women. On Monday, NBC fired political journalist Mark Halperin after multiple allegations, and The New Republic said it had launched an investigation after publisher and president Hamilton Fish was accused of harassing women.

In an interview published by BuzzFeed News on Sunday, actor Anthony Rapp alleged that he was attending a party at Spacey’s apartment in 1986 when an inebriated 26-year-old Spacey picked him up, placed him on his bed, and climbed on top of him. Rapp, then 14, was able to get away without any physical harm.