UPDATE - 16.10: According to an eye-witness, the coastguard helicopter and lifeboat have now departed the scene. We will provide more information on the situation as we get it.
Early reports emerging from Blackrock beach this afternoon suggest an ongoing incident or search involving a Coastguard helicopter and a lifeboat in the area.
Gardai are also understood to be present onshore.
An eye-witness, speaking to the Democrat, said: "There’s a few garda cars and a group of coastguards on the hill at the Ladies Beach. There are two winchmen leaning out of the side of the helicopter looking down into the water."
This is a developing story - stay with us for more.