Police, firefighters and paramedics were called earlier this morning to a report of a man in the water off Wharf Street in Sowerby Bridge.
The body of a man has since been removed from the water.
A spokesperson for West Yorkshire Police said they were called at 9.21am today.
"Emergency services are currently in attendance after police received a report of a concern for safety involving a male in the water off Wharf Street, Sowerby Bridge.
"Officers have attended and the body of a man has been removed from the water. Enquiries remain ongoing.
"Anyone with information is asked to contact police via 101 quoting log 381 of today."
As this photo by a Courier photographer shows, the car park near the wharf looks to have been taped off.
A spokesperson for West Yorkshire Fire and Rescue Service has told us they were called to Stanley Street at 9.38am.
Crews from four fire stations were deployed - Halifax, Todmorden, Illingworth and Rastrick.