The Taoiseach Leo Varadkar has said that, in the event of a no-deal Brexit by the UK, some checks on goods and animals may need to take place near the Irish border.
He was speaking at the annual dinner of the British Irish Chamber of Commerce in Dublin on Thursday.
This suggestion comes despite repeated guarantees that there would be no infrastructure on the border, regardless of the outcome of Britain's exit from the European Union.
The British Prime Minister Boris Johnson has ruled out asking for another Brexit extension, saying he would "rather be dead in a ditch".
He was replying to a question about whether he would resign rather than seek an extension from Brussels.
Speaking in West Yorkshire, he said "I'd rather be dead in a dead" than ask for any extension past October 31st.
Gardaí have arrested four people over a shooting in the Lucan area of Dublin on Wednesday.
The man aged in his early 40s was shot while he sat in his car at Griffeen Glen Park.
He was shot up to 10 times and was taken to Connolly Hospital Blanchardstown, where he is in a stable condition.
Increasing the price of snacks could be better at reducing obesity than simply targeting sugary drinks, researchers have suggested.
A new study - published in the British Medical Journal - found that a reduction in the consumption in high-sugar snacks, has a better chance at improving people's health compared to taxing fizzy drinks.
A 20% tax on sugary snacks like cake, biscuits and chocolate could reduce a person's calorie intake by 8,900 calories over the course of a year.
The advertising watchdog has said four online 'influencers' failed to tell their followers clearly they were running paid posts.
Complaints were upheld against Beauty Baby/Ellie Kelly, Flormar Makeup/Katie Moran, Mibodi Apparel/Gary Pineda and REN Skincare Ireland/Laura's Views in the latest bulletin of the Advertising Standards Authority for Ireland (ASAI).
The complaints found that those involved were not clear as to the whether the posts were adverts or marketing communications.