Police rushed to Preston Docks, off Mariners Way, following reports a body had been found in the water at around 9am today (October 7).
There was a large police presence in the area, with ambulance crews and firefighters also on the scene.
Officers have confirmed an investigation is now underway.
A spokesman for Lancashire Police said: "We were called at shortly after 9am today (Wednesday, October 7) to a report of a body in the water at the docks on Mariners Way in Preston.
"Police are at the scene and enquiries are ongoing."
More to follow....