A spokesman for the St. Louis County prosecutor says a grand jury is still meeting to consider charges against a Ferguson police officer in the shooting death of 18-year-old Michael Brown.

Ed Magee, a spokesman for Bob McCulloch, sent an email to media organizations early Friday afternoon outlining plans for a press conference once McCulloch is ready to announce the decision. He gave no timetable for the announcement.

Activists and the family of Michael Brown are calling for calm once the grand jury decides whether to indict Officer Darren Wilson in Brown's Aug. 9 shooting death.

Brown's father, Michael Brown Sr., put out a video calling for peace, no matter what the decision.