The Los Angeles County coroner's office expects to release some information from the autopsies of actor Paul Walker and financial manager Roger Rodas on Wednesday, the coroner's office told CNN.

The autopsies were completed Tuesday, but investigators placed a "security hold" on the results. The coroner's office did not give a reason for the secrecy.

The coroner has not publicly identified the two people killed in the crash, but the victims are widely known to be Walker and Rodas.

Four days after the crash that killed the two men, key questions remain unanswered.