Two people were killed and at least eight were wounded in a shooting outside the landmark Empire State Building in New York City on Friday, according to a police source.

One of the dead was the shooter, the source said, adding that there was no apparent link to terrorism.

"I heard the gunshots," said Dahlia Anister, 33, who works at an office near the 102-story Empire State Building. "It was like pop, pop, pop. It was definitely in a bunch."