Query: What group protested for Naguib's reinstatement?
Context: However, on 27 February, Nasser's supporters in the army launched a raid on the GHQ, ending the mutiny. Later that day, hundreds of thousands of protesters, mainly belonging to the Brotherhood, called for Naguib's return and Nasser's imprisonment. In response, a sizable group within the RCC, led by Khaled Mohieddin, demanded Naguib's release and return to the presidency.