Council officials are looking at calling in noise specialists in an attempt to locate a mystery hum disturbing residents of a Co Tyrone town.
People in Omagh have been reporting a persistent low level hum or buzz in the town for several weeks.
Noise officers have been sent out to investigate it and have heard it, but have so far been unable to identify the source.
Senior official at Fermanagh and Omagh council John Boyle told a recent meeting the issue would “not be an easy one to crack”.
He said existing equipment was not sensitive enough to find the source and they would either have to buy new equipment or employ a specialist contractor.
Among the potential culprits being investigated are air-conditioning units or power lines.
The council has been in contact with the company responsible for electricity distribution.
The issue was first raised by Alliance councillor Stephen Donnelly. He said he has received multiple reports from a wide area of the town.
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