Los Angeles County officials are investigating what appeared to be a pair of lungs found on a sidewalk in unincorporated South Los Angeles.

A citizen called to report what she thought were the organs about 8:30 p.m. Sunday in the 13100 block of Avalon Boulevard, said Sgt. Robert Dean of the Los Angeles County Sheriff's Department.

Deputies responded and called the coroner's office to the scene. Additional testing will be done to determine if the remains are in fact lungs and whether they are human, Dean said.

"We don't know what they are," Dean said. "It's really weird."

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-- Kate Mather