People living in border counties are being urged to remain vigilant to the threat posed by Covid-19, amid concerns about high rates of transmission in some areas.
The Health Service Executive and Northern Ireland's Public Health Agency have issued a joint statement, warning of the risk of increased infection in the coming weeks as restrictions are eased.
The authorities said that if people fail to stick to public health guidance, there will be an inevitable rise in the number of coronavirus cases and a possible reimposition of lockdown measures.
The warning comes after Chief Medical Officer Tony Holohan expressed concern about persistently above average rates of infection in Co Donegal.