London police say they found 12 firearms, a semi-automatic rifle, a 20-round magazine containing six rounds of ammunition and pepper spray at a Spencer Crescent residence Tuesday.
A 31-year-old London man is charged with seven weapons offences related to the rifle, ammunition and pepper spray
The 12 firearms are not related to the charges and police say an unrelated investigation is under way involving those weapons.
Anyone with information is asked to contact police.