People in the UK have been warned by a leading insurance provider to ensure they know the whereabouts of their spare keys.
Sainsbury's Bank has made the call after its new research estimated that there may be over 100 million spare sets of keys in circulation, despite over a million people not knowing if they have retrieved them from exes, previous tenants or cleaners.
It was also found that those most likely to have the keys would be children of the household, as well as other members of family and next-door neighbours.
Discussing the research, Sainsbury's home insurance manager Neil Laird said: "It's concerning to see just how many homeowners have completely lost track of who could have access to their home.
"If you don't take reasonable care of your property, including keys, you could potentially invalidate your insurance."
Sainsbury's Bank recently warned cyclists to ensure they take steps to ensure their bikes are safe at home.
The provider made the comment after Conservative leader David Cameron had his bicycle stolen.
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