Gardaí have said they believe a further protest is planned for Citywest tonight and that gardaí will be in place for the next five days.
Protests have taken place outside the Citywest accommodation centre since Monday night.
The Assistant Commissioner in charge of Dublin said what has happened over the past two days has not been peaceful protesting.
Cliona Richardson also said that many of those involved in the violence are not from the Saggart area and have come in from other parts of the country and abroad.
She said gardaí are very conscious of the impact the violence is having on the communities preventing people from going to work, shops, or visiting people in hospital.
She appealed again to people not to come out tonight for criminal reasons or with violent intent.
Asst Comm Richardson said last night's disturbances largely involved young people and that such actions have long-term consequences for them.
The scene commander said gardaí will commence the evening in uniform with soft caps but have the capacity to escalate the graduated police plan. The Public Order, Dog and Mounted Units, as well as the water cannon, will be available again tonight.
Chief Superintendent Michael McNulty said there will be a constant presence of gardaí in the Citywest complex over the next week but it was not possible at this stage to say how long the situation would continue.
He said decisions on when to escalate the policing plan were made on intelligence and live feeds to the control room.
He also said that they have no reports of injuries from members of the public.
Gardaí said they are in the process of identifying people who threw bottles or missiles, launched fireworks, broke down walls for bricks and committed other offences, with a view to charging and bringing them before the courts.
Earlier, gardaí said there was significant criminal damage and a major impact on services in the Saggart and Citywest area of Dublin, mainly to public transport, following the disturbances outside the Citywest accommodation centre last night.
Over 300 gardaí were involved in policing last night's protests, during which four gardaí were injured. All four were treated in hospital and later discharged.
Fifteen scooters and e-bikes were seized last night and a policing and security operation remains in place at Citywest.
Gardaí have urged people, male juveniles in particular, not to get involved in public disorder.
Watch: Gardaí released body cam footage of disturbances in Citywest this week
"This is not fun and games and entertainment for social media. The choices and reckless decisions you may make, to get involved or caught up in these events, may have serious consequences and adversely affect the course of your future," gardaí said in a statement.
They appealed to family members and friends, as well as those with influence in the community, "to engage with younger people and appeal for them not to get involved in this criminal activity".
The Vice President of the Garda Representative Association has said he will not stand for members being injured in the line of duty where such instances could be avoided.
Speaking on RTÉ's Drivetime, Garda Niall Hodgins said the rioting that has occurred at Citywest in Dublin over the last number of days had resulted in a fourfold increase in injuries to gardaí.
Four members were injured last night, while one was injured on Tuesday.
"I fully respect the graduated response, and I suspect these are highly trained, on-scene commanders that make these decisions," said Mr Hodgins.
"However ... we are already at a level here whereby our members in soft caps were placed out in the frontline yesterday and we had a fourfold increase of injuries on our members.
"Many of those members are reporting unfit for duty today."
Mr Hodgins said pressure was being put on members, who are also expected to carry out road policing duties across the upcoming Bank Holiday weekend, as well as policing the Dublin Marathon this Sunday.
Last night's policing operation began just before 7pm as gardaí prevented protesters arriving at Citywest from gathering in large numbers to form a critical mass.
Uniformed gardaí in soft caps directed people to leave the area under Section 8 of the Public Order Act.
They also linked arms and formed lines, which protesters tried to breach, and were subjected to verbal abuse.
The Public Order and Mounted units were deployed to push protesters back as the graduated policing plan was stepped up. The water cannon was on standby but not used.
The Air Support and Dog Units along with 150 uniform gardaí and 120 public order officers were also involved.
Ukrainian families residing in Citywest have said they are "scared" and "concerned" after a second night of disturbances during which they were instructed to stay in their rooms and keep away from windows.
The Garda Representative Association said that members and colleagues "held an extremely volatile frontline at Citywest last night while under constant threat of attack".
However, "this response has sadly come at a cost with two more gardaí sustaining injuries," its Vice President Niall Hodgins said in a statement.
"We have grave concerns for the safety of our members and colleagues, especially those deployed initially to face these violent thugs prior to the deployment of the public order units.
"It is becoming obvious that a more robust response is required far earlier to ensure no further injuries are inflicted on our members.
"What started out as a planned public protest has sadly descended into an ongoing full scale threat to the safety of our members and the public that they so bravely stand to protect.
"It is our firm belief that these apparent protests are nothing but the continuation of violent riotous behaviour from night to night with the sole intention of causing damage to property and injury to our colleagues who bravely continue to protect the public," Mr Hodgins added.
Trouble had previously broken out at the Citywest accommodation centre on Tuesday during a protest attended by around 2,000 people.
An investigation to identify all of those involved is ongoing.
The demonstration began after a man had appeared in court charged with the sexual assault of a girl in the early hours of Monday morning.
