They were produced before the court with a seven-day remand prayer in the afternoon, the OC said.
Their names were not mentioned in the case but police found evidence of their involvement with the violence and subversive activities carried out during March 28 hartal.
Soon after the attack and vandalism on Dhaka-Chattogram and Dhaka-Sylhet highways, police and Rapid Action Battalion filed six cases with the police station. Later, two more cases were filed.
So far, law enforcers arrested 35 people in connection with the cases.
Stay updated on the go with The Daily Star Android & iOS News App. Click here to download it for your device.