Updated

Authorities say they've found discarded burial vaults in a heavily wooded part of a historic black Chicago-area cemetery where workers allegedly dug up bodies and dumped them in a scheme to resell plots.

Cook County Sheriff's office spokesman Steve Patterson says about 10 to 12 cement vaults were found in the same area where hundreds of remains were discovered this month.

Patterson said Friday that officials didn't know how many bodies were buried in the vaults at the Burr Oak Cemetery in Alsip, but he says it looks as if cemetery workers were purposely trying to hide them.

Four workers were charged in the alleged scheme at the cemetery where civil rights-era lynching victim Emmett Till is buried.