During the blockade, protesters set tyres on fire and erected barriers at several key points, including the entrance to Khagrachhari town in Chengi Bridge Union Parishad.
The Khagrachhari district administration imposed Section 144 in the municipality and Sadar Upazila on Saturday, citing risks to lives and property amid protests over the alleged gang rape of an eighth-grade schoolgirl.
Earlier, locals blocked roads throughout the day to demand justice for the incident, which has sparked widespread outrage in the area.
According to a notice signed by Deputy Commissioner Muhammad Iftekharul Islam Khondaker, gatherings of five or more people, including processions, rallies, and assemblies, are prohibited from 2pm until further notice.
The administration has warned that strict legal action will be taken against anyone violating the order.