A CONTROLLED explosion was carried out at the Duke of Westminster’s Eaton Estate.
Police bomb disposal experts were called to the sprawling estate after the mortar was discovered just before 4pm on Wednesday, May 1.
It is the second shell to be discovered at the estate, which was used as a military training base during the Second World War, in three weeks.
Cheshire Constabulary spokeswoman Shelley Morris said: “Cheshire police were called to the Eaton estate in Chester just before 4pm on Wednesday, May 1 following the discovery of an unexploded mortar in the grounds. A controlled explosion was carried out.
“There were no evacuations necessary and the safety of the public was not compromised at any time.”
The discovery came just three weeks after another unexploded mortar shell dating back to the Second World War was detonated on March 13.
A tree surveyor spotted the two-inch shell at the bottom of a tree and alerted workers on the estate.
Police were called and requested the attendance of the army’s explosive ordnance disposal (EOD) team. Officers then safely detonated the mortar shell in a controlled explosion.
Grosvenor Estate spokeswoman Tori Sharp said at the time: “A two-inch mortar round, used to create smoke screens during the Second World War, was discovered by a tree surveyor working in private parkland on the Eaton Estate.
“It was found at the base of a tree, probably brought to the surface by adverse weather conditions and growing tree roots.
“Estate staff on site, who have been trained by the army to recognise military munitions, cordoned off the area and called Cheshire police.
“The army’s EOD team attended and made the device safe through a controlled explosion.
“This device was a legacy of the military training that occurred at Eaton Hall during and after the Second World War.
“It was unlikely to cause danger but still needed to be handled by the professionals.”