Ms Armstrong was speaking after PSNI launched a murder inquiry following the death of a man in his 20s in Newtownards. Police were called to a house on Bangor Road around 5.30am today (Sunday) after reports of an assault.
The victim was found lying on the road and later died at the scene. Two men, both aged 19, have been arrested on suspicion of murder.
“I am shocked by this incident, which will send shockwaves throughout the entire community,” said Ms Armstrong.
“My thoughts and prayers are with this young man’s family following his death. To lose a loved one in such terrible circumstances is devastating.
“I call on anyone who has information to please contact police, using reference number 391 of 26/02/17 or alternatively information can be passed anonymously to Crimestoppers on 0800 555 111.”