Feb. 16 (UPI) -- The Federal Bureau of Investigation informed Minnesota's highest investigative agency that it will not share evidence and information related to the killing of Alex Pretti.

The Minnesota Bureau of Criminal Apprehension said in a statement that it was informed by the FBI on Friday it would not be sharing any information.

Superintendent Drew Evans called the decision "concerning and unprecedented."

"While this lack of cooperation is concerning and unprecedented, the BCA is committed to thorough, independent and transparent investigations of these incidents, even if hampered by a lack of access to key information and evidence," Evans said in a statement. "We will continue to pursue all legal avenues to gain access to relevant information and evidence."

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