Mo. Rev. Stat. § 71.780

The legislative or governing bodies of cities organized under the general statutes or special charters shall have, and they are hereby granted, the power to suppress all nuisances which are, or may be, injurious to the health and welfare of the inhabitants of said cities, or prejudicial to the morals thereof, within the boundaries of said cities and within one-half mile of the boundaries thereof. Such nuisances may be suppressed by the ordinances of said cities, or by such act or order as the charters of said cities authorize them to adopt. If the nuisance is suppressed within the city limits, the expense for abating the same may be assessed against the owner or occupant of the property, and against the property on which said nuisance is committed, and a special tax bill may be issued against said property for said expenses.