South Los Angeles, CA (KTLA) — Authorities are investigating what appeared to be a pair of lungs found on a sidewalk in South Los Angeles.

A citizen called to report finding what she thought were the organs at 8:30 p.m. Sunday in the 13100 block of Avalon Boulevard.

Sheriff's deputies responded to the scene, and the coroner's office was also called.

Additional testing will determine if the remains are in fact lungs and whether they are human, police said.