Authorities in New Haven made a grisly discovery on Wednesday when they found a pair of human legs near a railroad station and a plastic bag containing “at least one” human arm during a subsequent search of the area, WTNH reports.

Police say the legs have been decomposing for at least a week and they do not currently know if they are related to the arm.

“We don’t know at this point by looking at the evidence, we found whether the person is white, black, hispanic, male, female, no indication of age,” police spokesperson David Hartman told WFSB.

According to Pablo Rivera, who led police to the legs, the man who originally found the limbs thought they might be fake.

“He started screaming, ‘Hey, come here, I think I found something, two human legs, come here I want to make sure it is real,’” Rivera told WTNH.

At a press conference Wednesday night, police said they do not believe the limbs were severed by a train.

“We do not think it’s a train accident,” said Hartman, “not at this point.”

[Image via WTNH]