Police said they've launched a search after a woman went over Niagara Falls on Saturday.

New York State Parks Police are calling the 6 p.m. incident at Prospect Point an “intentional entry,” WIVB-TV reported.

UPDATE: a large crowd of people has gathered to watch the rescue efforts at Niagara Falls. pic.twitter.com/BlVBwEzSRX

— News 4, WIVB-TV (@news4buffalo) September 19, 2015

Authorities didn't release information about the victim, including if she is alive, the station said.

A bystander took video of the incident, WIVB added, and authorities are using it in their investigation.

The Associated Press contributed to this story.

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