Protesters, who demand immediate action against corruption, have gathered in the city of Taza to call for a boycott of the November 25 elections which they say will bring about no results.
The Moroccan government says it is working on a package of reforms, which will give more power to the elected parliament.
However, activists have rejected the planned reforms, describing the vote as a sham.
Morocco held a referendum on reforms on July 1 that was approved by a majority of the people. The reforms call for the direct election of the prime minister, who was formerly appointed by the king himself.
The king will remain the head of state and commander-in-chief of the military as well as the highest religious authority of the country.
The February 20 Movement has been named after the day Moroccans, inspired by the revolutions in Tunisia and Egypt, first began their anti-government demonstrations.