Owners have now been named, the heli was frequently hired out to film crews and was en-route to Weston Airport, Dublin-Kildare border
Search called off due to bad weather/poor visibility, Snowdonia search & rescue teams will be out at first light subject to weather along with sea & air searching by commercial craft and public have been asked to keep a look out for wreckage on land or shoreline
No mayday calls had been received according to Coastguard