A woman apparently committed suicide this morning after jumping from a luxury apartment building on the Upper East Side.

Suyeon Kim, 29, of Flushing, Queens, plunged from the 18th floor and landed on a second-floor ledge on East 79th Street and Second Avenue.

Kim jumped from apartment 18B of Continental Towers at 301 E. 79th Street.

The building’s doorman, Juan Gonzalez, 48, said a man “came down after it happened” and tried to help her.

“He was hysterical and crying,” he said. “He was wearing a suit like he was getting ready for work. I’m sick to my stomach.”