ALTADENA (CBSLA.com) — Los Angeles County sheriff’s investigators found several more human bones Wednesday in an Altadena catch basin near where a femur was found over the weekend.

Authorities have found a humerus, or arm bone, and two vertebrae at the Rubio Wash Debris Basin, along Rubio Canyon Road in Altadena, all believed to be from the same body as a human femur found at another catch basin in the 2800 block of Tanoble Drive.

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Coroner’s officials believe the bones found in Altadena are connected to finds back in 2004 or 2005.

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There have been at least two other discoveries of human bones at sites in the county recently. A skull was found at 3 p.m. on Halloween by hunters in the Lake Hughes area, while a hand was found at 9 a.m. Sunday by passersby in the La Crescenta area.

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The bones found in Lake Hughes and La Crescenta are not believed to be related to the Altadena bones.