A homicide investigation has been launched after a body was found in suspicious circumstances near Tauranga.

Detective Inspector Lewis Warner says police received a report of a body in the water below McLaren Falls Bridge on McLaren Falls Road about 11.30am on Friday.

"The body has not yet been identified and a forensic post mortem will take place today.

"The investigation is in its early stages and Police would like to hear from anyone who saw suspicious activity on McLaren Falls Road yesterday.

"Information can be provided to Tauranga Police on 07 577 4300, or anonymously via Crimestoppers on 0800 555 111.

"Further details will be released when they become available."

A photographer at the scene says cordons are still in place at McLaren Falls Rd.

Road cordons at McLaren Falls Rd. Photo: Cameron Avery.