Garda Commissioner Martin Callinan said he had been deeply saddened to hear of his colleague's death.
He was a very popular member of An Garda Siochana, a very efficient member, someone who was revered both by his peers and members of the community where he served.
More top news
The Kremlin has released pictures of Russian President Vladimir Putin working out at the gym with Prime Minister Dmitrty Medvedev in Sochi.
Cloudy skies for many this Bank Holiday Sunday.
The brother of British holidaymaker Steven Cook who vanished in Crete 10 years ago has his family are "sure he's alive".