Northern Ireland has recorded 462 new cases of Covid-19 in a 24-hour period.
There has been one further death reported by Northern Ireland's Department of Health.
The death toll recorded by the department now stands at 584.
It comes as a 46-year-old woman was charged with breaching coronavirus regulations in Strabane, Co Tyrone.
She is the first person in Northern Ireland to be charged under the new legislation. The woman is due to appear before court tomorrow.
The latest figures show that the infection rate in Derry City and Strabane has continued to increase.
There are now 485.2 cases per 100,000 of the population.
The rate in the Newry, Mourne and Down council area is up to 289.1 while Belfast has also risen to 214.8.
The area with the next highest prevalence is Mid Ulster at 180.3.
Northern Ireland's finance minister, Conor Murphy, said that further steps will be considered by Stormont if the current Covid-19 measures are not effective.
Mr Murphy told the BBC's Sunday Politics all options would be discussed when the Executive meets tomorrow.
He also said he was working to quickly put in place a package to support businesses forced to close their doors as a result of Covid-19.
"We recognise that if businesses are forced to close down in hospitality that there will be going costs that they will need assistance with," he said.
"What we want to do is put a scheme in which gets support onto the ground very quickly, which isn't overly bureaucratic, which recognises that this may be in place for a couple of weeks and that people need support with ongoing costs."
He said that the furlough scheme was still available until the end of the month but they still wanted to get a new support package on to the ground, that went "directly to those who need it".
The Stormont Executive announced new restrictions for the Derry City and Strabane Council area on Thursday in an effort to stem spiralling infection numbers.
They include hospitality businesses being limited to takeaway, delivery and outdoor dining, and a call to avoid unnecessary travel.
A total of 65 patients with Covid-19 were being cared for in 20 hospitals in the region on Sunday, with nine in intensive care.
The head of Health Protection at the Public Health Agency (PHA), Dr Gerry Waldron, said Northern Ireland and the Republic of Ireland are working well together but communication could be "ramped up" and "improved".
Speaking on RTÉ's This Week, Dr Waldron said they are in a situation now where they are seeing an unprecedented number of positive Covid-19 cases in Northern Ireland.
He said it was almost inevitable that case numbers would rise as restrictions began easing and people began to find it more difficult.
He said the PHA has been warning against complacency for a long time.
Dr Waldron believes the rise in cases of coronavirus is largely down to people in many instances not self-isolating after being in close contact with a positive case.
Currently, Level 3 restrictions are in place in Donegal, while across the border the Derry-Strabane area continues to give particular cause for worry, with 721 positive cases in the last seven days.
Dr Waldron said despite working well together, more can be done to improve how Northern Ireland and the Republic of Ireland fight the virus together.
"I think it's very important that we work together on both sides of the border. We're on an island, the virus doesn't recognise the border.
"We have been working very, very hard and very successfully with our colleagues on the other side of the border.
"We always need to do more, we always need to consider, " he said.
"During the past week I've been meeting on a daily basis with colleagues from the HSE northeast and northwest and we're keeping each other informed of what's going on.
"That's very important in terms of what's happening particularly in the Derry-Strabane area because you'll know very well, that there are similar issues over on the other side of the border in Donegal.
"And there are people going over and back across the border every day, whether it's for school, or for work, for sports or for socialising."
Dr Waldron said even though they are working well, he said communications can always be ramped up and improved.
"The big thing I would like to see, and this applies to both sides of the water, is that the basic messages that we have been putting across and that our colleagues in the Republic have been putting across are heeded.
"Its down to every one of us to keep ourselves safe and by extension protect others."
