Cabinet will consider extra restrictions on people traveling into Ireland from Britain this morning.
It follows a surge in cases of the more transmissible Delta variant in England, with the strain fast becoming dominant there.
Under plans to be considered by ministers, unvaccinated people will need to isolate for 10 days - with negative tests on day 5 and 10.
Sinn Fein Transport spokesperson, Darren O'Rourke, says antigen testing for passengers from Britain should also be considered.
"I think now is a very opportune time to introduce serial antigen testing as has been proposed by a number of international experts in the area.
"It could provide an additional source of protection for people who are travelling for essential reasons, but also for people who are not travelling and are living in the community."
