A firearm was handed in everyday at Chingford police station during the two-week weapons amnesty, it has been revealed. 

A total of fifteen guns were surrendered along with a Second World War hand grenade, an air rifle, an imitation gun, and 2,348 rounds of ammunition. 

Of the fifteen firearms, half of them were pistols, three were revolvers, and two long-barrelled shotguns were handed in.

Police at the King's Head Hill-based station received 1,378 rounds of ammunition from the First and Second World War period, 200 long rifle calibre bullets, 145 shotgun cartridges and almost 600 rounds of other ammunition.

John Chambers, 63, from Chingford, sparked a full-scale emergency lockdown on the first day of amnesty when he turned up with his wife Doreen to hand in the grenade which belonged to his father. 

The couple were evacuated alongside officers and administrative staff as explosive officers were called in to handle the Mills bomb. 

As a child Mr Chambers had played with the device which was used by his father during wartime weapons training sessions. 

Police have said that the overall figure could increase in the coming days.   

The 'give up your guns' campaign from November 10 to 23, was the first weapons surrender by the Metropolitan Police in six years and saw a total of 351 firearms being taken off the street. 

The ammunition handed in to Chingford Police station represents a fifth of London's total - 12,300.  

Detective Chief Inspector Gary Bruce of the Trident Gang Crime Command, said: "We had an incredible response to the gun surrender and I want to thank Londoners for their enthusiasm in getting behind this campaign and supporting us.

"The surrender has led to a significant number of lethal-barrelled weapons and ammunition being taken off the streets, preventing them from falling into the hands of criminals, in particular gang members, and helping to further reduce gun crime in the capital.

"We have seen a substantial number of antique or 'granddad guns' handed in, ultimately these firearms are live weapons and can be used to kill or injure someone."