Six people have lost their lives in waterways in the Republic and Northern Ireland over the last week.
They include a man in Dublin, teenagers in counties Down and Cavan, a woman in Cavan, a man in Fermanagh and a man in Leitrim.
Chief Executive of Water Safety Ireland, John Leech, says it's heartbreaking news:
"It's awful use. It's the worst bout of drownings we've had since 2013, when we lost 13 people in 14 days on the island. So unfortunately, we're almost coming back to that at the moment and we're very concerned at the moment, because of the sheer number of people who are drowning at present."