A Bronx man was arrested Sunday in the attempted rape of a 25-year-old woman on an Upper East Side subway platform — a disturbing daytime attack that was caught on video and ultimately thwarted by fellow New Yorkers, police said.

Jose Reyes, 31, is accused of pouncing on the woman around 11 a.m. Saturday inside the Lexington Avenue and East 63 Street F train station, the NYPD said.

“This heinous and horrendous act was interrupted by a good Samaritan who observed Mr. Reyes’ behavior and got him to cease his behavior while subsequently videotaping the incident,” NYPD Chief of Detectives Rodney Harrison said at a press conference.

Video taken by the witness showed a man — identified by cops as Reyes — on top of the woman before a crowd of bystanders gathered.