Colorado police investigating after box of human heads stolen from truck in Denver

The blue and white box had a label that said 'Exempt Human Specimen,' police said.

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Someone broke in and stole a box containing human heads from a truck in Colorado last week, according to reports. 

The strange theft took place between 2:30 p.m. Wednesday and 9:30 a.m. Thursday while the freight company truck was parked in Denver’s Central Park neighborhood, police said. The heads were being transported for medical research purposes, according to authorities. 

The theft occurred in Denver’s Central Park neighborhood

The theft occurred in Denver’s Central Park neighborhood (KDVR (FOX 31 Denver))

"Pretty shocking," Isaac Fields, a local resident who routinely walks his dogs in a nearby park, told FOX 31 Denver. "I guess I don’t see too many strange things happening around here usually."

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Isaac Fields<strong> </strong>a local resident who routinely walks his dogs in a nearby park called the incident "pretty shocking," FOX 31 reported. 

Isaac Fields<strong> </strong>a local resident who routinely walks his dogs in a nearby park called the incident "pretty shocking," FOX 31 reported.  (KDVR (FOX 31 DENVER))

The blue and white box had a label that said "Exempt Human Specimen," police said, according to The Denver Post. 

A dolly was also stolen and police did not say how many heads were in the box.

The cardboard box, which was about 20 x 15 x 18 inches, also had "Science Care" written on the sides, sources told FOX 31

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Science Care is a program for donating bodies for both scientific research and education, according to the station. 

Denver’s Central Park neighborhood

Denver’s Central Park neighborhood (KDVR)

The investigation is still ongoing, police said, and no arrests have been made as of Sunday.

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Anyone who finds the box of human heads is asked to call the Denver Police Department, authorities said.