HOUSTON (AP) — Houston Police Chief Art Acevedo says public safety is the primary mission but his officers won't allow defacing or destruction of property at a rally scheduled for a downtown park where a Confederate monument has stood since 1908.

Black Lives Matter Houston is organizing an event for Saturday afternoon at the city's Sam Houston Park. The park is home to the "Spirit of the Confederacy" monument that features a bronze statue of a winged angel holding a sword and palm leaf with the inscription: "To all the heroes of the South who fought for the Principles of States Rights."

Rally organizers have said they want the monument removed.

Houston Mayor Sylvester Turner this week ordered a review and assessment of the city's few Confederate monuments.