A Waterloo Regional Police officer has lost a loaded gun magazine in Kitchener.

Police say it happened when the officer was patrolling on Frederick Street on Monday.

According to a public safety analyst, the public shouldn't be too concerned.

"I mean it’s not a good thing ever that a police officer loses a magazine, but sometimes these things happen," says Chris Lewis, a public safety analyst.

Police say the gun magazine contained 15 bullets.

Officers carry the spare clips on their belts, but it's not known what was happening at the time it was lost.

"They’re not big, they’re not heavy, it’s not that noticeable when it’s suddenly gone off your belt," Lewis says.

Police say they conducted an extensive search of the area but have not been able to locate the lost ammunition.

Anyone with information is being asked to contact police.