Skerries RNLI Lifeboat was tasked last night at 8pm to reports of an upturned hull in the water off Donabate Co Dublin. The lifeboat was launched within six minutes and with the help of the Coast Guard Helicopter "Rescue 116" quickly located the object in the water. The object turned out to be a racing mark that was not floating correctly. The boat returned to station, refuelled and was ready for service before 10pm