Security forces arrested on Sunday three members of the Muslim Brotherhood (MB) over participating in a protest without permission from authorities in Menoufiya governorate.
They were also arrested with Molotov Cocktail canisters in their possession.
Another MB member was arrested in Menoufiya University with leaflets in possession.
Earlier, about 100 MB members launched a protest in Shebin el Kom city where they chanted slogans against the state.
The protesters also blocked off the road and fired fireworks.
Security forces rushed to the area while the protesters fled to side streets.
A probe was launched into the incident.