Northern Ireland's health minister has expressed concern following a spike in Covid-19 cases.
Some 1,083 cases were notified by the Department of Health there today, up from 636 yesterday.
This is the first time the daily case number in Northern Ireland has been over 1,000 since the peak of the third wave of the pandemic in mid January.
The number of people testing positive over the past seven days is now at 4,437.
The average seven-day incident rate per 100,000 people across Northern Ireland was 234 today.
Derry and Strabane had the highest rate at 372 followed by Belfast on 319 while Fermanagh and Omagh had the lowest rate at nine.
Stormont health minister Robin Swann said the increase in cases is in the younger age groups, and urged all to take up the coronavirus vaccine.
"We have seen the numbers climb in recent weeks but today's spike in cases is cause for concern," he said.
"This is the first time since January that we're reporting a daily change of over 1,000 positive cases, and while we are in a more fortunate position with a large proportion of the population now vaccinated we must remain cautious.
"We need everyone to play their part in helping to stop the spread of the virus.
"Our advice remains the same, stick to guidelines and regulations, all adults aged 18 and over should get vaccinated, and ensure you and your close contacts self-isolate if you test positive.
"Unfortunately, we are seeing an increase in cases in the younger age group so I would make a particular appeal to this group to get vaccinated.
"Covid-19 has left many with debilitating long-term health issues, don't put yourself at risk, get the vaccine.
"We all want to enjoy the summer but we must continue to do it safely."
No further coronavirus-linked deaths were reported today in Northern Ireland, leaving the toll at 2,159.
Meanwhile there are 80 Covid-19 positive patients in hospital, with two in intensive care.
Chief medical officer Michael McBride said vaccination "is key to preventing serious illness".
"With such high infection levels circulating in the community it is vital that all those eligible for vaccination come forward for their jab," he said.
"Our vaccination programme has been very successful and there is no doubt that many people are alive in Northern Ireland today because they have been vaccinated."
Dr McBride said the Northern Ireland health service is currently struggling to cope with the current levels of demand for care. "We simply cannot continue to add more pressure," he said.
