The incident took place during the funeral of Peggy O’Hara, whose son Patsy died on hunger strike in the Maze Prison in 1981. As her remains were returned to her home, three masked men fired guns over the coffin.
Mr Dickson said it was a disturbing episode.
“Masked gunmen have no place in our society and there is no way we can accept any type of paramilitary display, whether at a funeral or anywhere else. Police must fully investigate this incident.
“If we want to build a shared future which is welcoming for everyone, this type of activity must be left in the past. I would urge anyone with information on this incident to contact police immediately.”