Just heard the latest on the local news.
Aircraft reported overhead Dingwall, then shortly afterwards was spotted circling Muir of Ord where one of the men worked.
The aircraft was then seen to be setting course back towards the West and shortly afterwards an aircraft meeting the description was spotted flying in a westerly direction in and out of cloud.
I'm not sure what the reported cloudbase was in the area at the time but there are several peaks in that area reaching over 3500'.
The local police are handing all the new information to the RCC at Kinloss in the hope of a commencing a new search at the weekend.
UA