HURON, S.D. (AP) — Supporters of medical marijuana and industrial hemp are planning on staging a protest Friday that will begin at the South Dakota State Fair.

Members of South Dakotans Against Prohibition have requested noise and parade permits to march from the fairgrounds to Campbell Park. KOKK-AM reports the group has also requested to temporarily close a part of Third Street, a major artery to the fair.

Cody Gardner of Huron says he already has about 150 confirmed protesters. He estimates there could be more than a thousand on Friday.

Gardner also says many Libertarian Party candidates in the state will be part of the protest.

City officials say they're skeptical about closing even part of a high-traffic area during the fair.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

More From KXRB