Using a mobile phone while driving is "killer behaviour" according to An Garda Síochána, who said it would lead to more road deaths.
A national appeal to motorists to drive safely has been made in the run-up to the end of summer holidays and back-to-school period, which gardaí say is traditionally a high-risk time on Irish roads.
The appeal comes after six road deaths in north Cork in the past month, the latest last Monday, bringing to 93 the number of people killed on Irish roads so far this year.
That figures is six more than this time last year.
There has also being an increase in the number of motorcyclists who have died this year - ten as opposed to seven between January and August.
Three of the deaths occurred in the past month in north Cork.
Superintendent Eddie Golden of the National Roads Policing Unit made the safety appeal today at the scene of the most recent fatal road collision at Newtwopothouse, near Mallow in Co Cork.
Supt Golden said people using their phones to access social media and video while driving or at traffic lights is an increasing and worrying trend. He described it as "killer behaviour".
He appealed to motorists "to do the small things well" - to check their mirrors, be careful at junctions and never drive with alcohol or drugs taken.
He appealed especially to motorcyclists to wear hi-vis jackets and to leave their dim lights on.
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Inspector Joe O'Connor from Mallow Garda Station renewed an appeal for witnesses or dash cam footage of last Monday's fatal crash in which a motorist in his 30s died when his rental car was in collision with an An Post truck at Newtwopothouse at around 7am.
Insp O'Connor said there have been seven road deaths in his area since January - six in the past month - and this was very alarming.
Monday's fatality was the second in three days in Co Cork.
Early on Saturday morning, an 18-year-old student from Dungarvan, Co Waterford died when his car was involved in a crash near Midleton.
The teenager had been on his way to collect his parents from a wedding at a local hotel.
On 1 August, a grandfather in his 50s died after his car collided with a fuel tanker on the Whitegate to Midleton road.
Three motorcyclists were killed in three separate incidents in July - two near Mallow at Dromahane and Ballyclough, while a third man in his 70s died on the Cork to Waterford road on 20 July.
