(ABC 6 News) – Minnesota Attorney General Keith Ellison is trying to stop violence in the state by putting a gun manufacturer on notice.

Ellison has joined 13 attorney generals in a letter to Glock Incorporated.

The letter tells the company to preserve all evidence related to its pistols, which can be converted into automatic weapons with one small modification.

“I hear residents, neighbors tell me about how converting semi automatic pistols into machine guns is wreaking havoc in our streets in our communities,” said Ellison.

The group is conducting an investigation which could lead to a future lawsuit against Glock.

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