Police investigating trouble in Lurgan last month when officers came under attack from petrol bombs have made five arrests.
The disorder happened in the Kilwilke area of the town.
The arrests were made in Lurgan and Portadown yesterday.
The five, all men aged 25, 29, 36, 46 and 52, are being held on suspicion of a range of offences including riotous behaviour, use of petrol bombs, affray and attempted grievous bodily harm with intent.
Chief Inspector Barney O'Connor said: "The disorder that occurred on Sunday August 23 was completely unacceptable.
"It was extremely disappointing that people made a deliberate decision to go out onto the streets and cause trouble.
"This small minority showed absolutely no regard for the local community and all those impacted by their actions.
"The disorder caused considerable disruption in the area, not just that afternoon and evening, but also in the days that followed.
"We know that some local public services and some local businesses were impacted, causing inconvenience for the local community.
"I want to take this opportunity to urge anyone tempted to become involved in this type of criminal behaviour to stop and consider the consequences of their actions and desist immediately."
The officer added: "I would also urge anyone, including those who gathered to watch this disorder, to understand it is not entertainment. It is dangerous and reckless activity, which had significant impact on the local community.
"We have gathered evidence in relation to this disorder and will continue to work to identify those responsible and those involved, and I would urge anyone with information that may assist us to call us on 101."