Gardaí in Athlone are asking for the public's help to find an elderly Australian tourist.
85-year-old William Tyquin has been missing since Tuesday.
He hired a black Dublin registered Hyundai ix20 last weekend with the intention of travelling around Ireland. Its registration number is 12-D-22135.
William is 5'6", with grey hair.
When last seen he was wearing cream coloured trousers, a grey t-shirt and sandals.
Gardaí and family are very concerned for William and are appealing for anyone who may have seen him to contact any Garda station.