A 25-year-old man is due to appear in court charged with posting offensive comments on Facebook linked to the Union flag protests.
According to officers from Operation Dulcet - the team set up to deal with the fallout from weeks of protests - the man has been charged with "improper use of public electronic communications network".
He was arrested in the Carrickfergus area yesterday.
He is due to appear at Belfast Magistrates' Court on April 12.
Last week police released a fresh tranche of images of suspects they wish to speak to in connection with weeks of violence and disruption which flared following Belfast City Council's decision to only fly the Union flag over the building on designated days.
An initial night of rioting spawned weeks of unrest across Belfast, with a series of roadblocks and loyalist protests often leading to violent clashes with police.
Since December over 200 people have been arrested and over 160 charged as part of the police investigation.
So far, 52 people have been reported for taking part in an unlawful public procession or for obstructing a road.