An Garda Síochána has declared an "exceptional event" in response to the fuel protests.
This allows the force to double the number of gardaí available to work.
The move came after a meeting between the Garda Commissioner and representative associations.
An "exceptional event" is invoked when the force is dealing with an emergency or unforeseen event and it allows the cancellation of rest days and the redeployment of gardaí to other areas as required.
The use of the mechanism is rare and suggests that extra gardaí will be deployed in response to protests taking place across the country.
The move comes as the Government confirmed a significant and enhanced fuel support package is being finalised after a day of what they described as "constructive engagement" with stakeholders.
The meeting between Government ministers and representatives of the haulage and farming sectors in the Department of Agriculture ended tonight with details of the new offer from ministers of further fuel reliefs still to be finalised.
Further meetings will take place tomorrow between the Irish Road Haulage Association (IRHA) and Minister for Transport Darragh O'Brien, and also between the Irish Farmers' Association (IFA), the Irish Creamery Milk Suppliers Association (ICMSA) and Minister for Agriculture Martin Heydon.
In a statement, the Government said a significant and enhanced support package is being finalised in detail to alleviate the burden on impacted sectors.
"Ministers stressed that constructive engagement with stakeholders will continue over the weekend and will reconvene again tomorrow to finalise the details of the response.
"They reaffirmed their intention to bring proposals to a conclusion as quickly as possible," it added.
Ministers had said earlier that no further package of support measures will be announced until fuel protesters end their blockades around the country.
Package of measures will be 'substantial and significant' - Harris
Tánaiste and Minister for Finance Simon Harris said that there will be a "substantial and significant" package of support for "key sectors of the economy".
Speaking on RTÉ's Six One, Mr Harris said the talks were "going well", adding that further "intensive engagement" into the weekend was likely.
However, he added: "The blockade has to end."
Asked about what measures may be announced, he said: "In the past, we've looked at things like how we get direct funding schemes to our farmers, we've looked at things around credit supply lines, cash flow - and also, at a European level, both myself and the Taoiseach working to see if we can get any flexibility around the energy tax directive."
Mr Harris said excise reductions had already been implemented and any further move in that area would require a "degree of European agreement too".
He said a price cap would not work, would potentially cost billions and would transfer the price to the taxpayer.
Watch: Tánaiste urges protesters to 'step back from the brink'
Asked to put an overall euro amount on the package, he said it would be "substantial and significant".
Four fuel protesters, including one of the campaign leaders John Dallon, were refused entry to the meeting at the Department of Agriculture.
The four turned up at the doors of the Department of Agriculture along with Fine Gael TD Peter Roche.
They were refused entry as their names were not on a list of attendees.
This followed a meeting the protesters held with leaders of the Irish Road Haulage Association in Buswells Hotel a short time earlier.
Leaders of the fuel price protests had not been invited to attend, despite their claims earlier they would have a meeting with ministers today.
Minister Collins said protesters were not allowed into the meeting with Government ministers because there are "different spokespeople from different parts of the country" who have "mixed" messages and "different demands".
"Nobody knows in terms of what type of mandate they have, what their asks are," he added.
A garda security operation is in place around Leinster House and Kildare Street in anticipation of possible protests related to the fuel blockades.
A number of protesters who were at O'Connell Bridge are also walking in the direction of Leinster House.
Speaking ahead of the talks, Minister Burke said the Government is preparing a new package to assist farmers, hauliers and consumers and he believes there will be news on that later.
On RTÉ's Today with David McCullagh, he said Tánaiste and Minister for Finance Simon Harris is working on an intervention but needs to get EU agreement in some areas.
"I do believe we will have news on that in terms of an intervention that will reduce inflation, that will try and reduce the prices of groceries on the shelves for consumers and vulnerable people buying them and trying to underwrite the logistics of getting them to the shelves, supporting farmers in their production, supporting hauliers getting the groceries on our shelves," he said.
Minister Burke said the Tánaiste is engaging with the EU to seek flexibility on the EU excise directive that limits member states ability to reduce excise beyond a defined limit.
He said the Government and Mr Harris are also working hard with various representative organisations to get a solution to issues.
Earlier, Minister for Rural Community Development Dara Calleary reiterated that the invite to the meeting had been made to official representative bodies only but he said the Government had no issue if fuel protesters represented those bodies at the meeting.
Speaking on RTÉ's Morning Ireland, he said: "Certainly, if protesters come representing the farm organisations, we're not dictating that they can't come.
"We're meeting the representative organisations today. We cannot meet groups who are stopping fuel, getting to communities, stopping fuel getting to farmers.
"We're not dictating to the representative organisations who they can't bring."
Resolving blockades is 'the most important thing' - minister
Minister Calleary said that resolving the blockades was "the most important thing".
"The focus of the mission is that we get a resolution to the blockades. We can't have a situation where we have enough fuel in the country and that fuel isn't getting to our citizens."
IRHA President Ger Hyland said he did not know if fuel protesters would be attending the meeting but that his organisation had offered to raise their concerns.
Speaking on RTÉ's Morning Ireland, Mr Hyland said: "We spoke to intermediaries yesterday evening. We offered to bring the concerns of the protesters to that meeting, as an honest broker, to try and come to some resolution between them and the Government because, at this stage, we need to get our country back moving again.
"It's up to Government who goes to a government meeting. I can't decide who I'll bring and who I won't. That is a decision for Government, who they bring to any meeting."
Meanwhile a three-day trade mission the Taoiseach was due to lead to Canada on Sunday has been postponed. No formal reason has been given for the postponement but RTÉ News understands it is due to the ongoing demonstrations and blockades by protestors around the country.
