Ulster People's Forum spokesperson Jamie Bryson has been charged with offences linked to loyalist flag protests, UTV understands.
The 23-year-old is accused of two counts of encouraging or assisting offences under the Serious Crime Act and four counts of taking part in an unnotified public procession.
Mr Bryson was arrested on Thursday on suspicion of public order offences connected to the demonstrations and was being held in police custody.
Police officers from Operation Dulcet carried out searches on Mr Bryson's Donaghadee home and in the nearby Kilcooley Estate as they attempted to track him down.
The taskforce is investigating offences linked to loyalist demonstrations that have been ongoing since December, in response to a council vote to reduce the number of days that the Union flag flies at City Hall.
Mr Bryson was detained on the same day when another loyalist campaigner Willie Frazer was charged by with public order offences.
Mr Frazer appeared in court on Friday and was remanded in custody to appear again in four weeks time.
Mr Byrson is due to appear at Belfast Magistrates' Court on Saturday.