Customers at a busy Wirral retail park looked on in shock as police descended on the area.
Emergency services rushed to Bidston Moss Retail Park, off junction one of the M53, in Wallasey, after a man's body was found. He was pronounced dead at the scene.
Police cordoned off a section of the car park, and forensic officers were seen working in a wooded area. One man said: "People were pulling up to go to the B&Q store and were wondering what was going on. There were around 10 police vehicles there, and a scientific support unit van parked alongside the embankment.