Police are investigating damage caused to the fencing surrounding the mast on the Snaefell summit.
Officers believe due to the nature of it, it hasn't been caused by adverse weather.
The constabulary added it's happened sometime between Friday, February 22 and Thursday, March 28.
Anyone with information is being asked to get in touch with Police Headquarters.
MHKs to discuss Manx car insurance in UK
Questions over Manx car insurance and driving in the UK will to discussed by MHKs in the coming week.
Will ring doorbell users need to register for data protection?
Will people with Ring doorbells have to register for data protection?
Major reservoir safety projects finished
Manx Utilities says it's finished two major safety projects at the Cringle and Clypse reservoirs.
Second weather warning this weekend
A second weather warning for heavy rain has been issued for this weekend.
Does government plan to press ahead with min wage rise?
Does the government plan to press ahead with its minimum wage rise this year?
Where has government found £11m in savings?
Where has the government found more than £11 million worth of savings?
Is there border security for Irish sailings?
What sort of border security is there in place for sailings to Ireland?
Emergency powers used to fell trees
Douglas Council's used emergency powers to cut down trees after it was found they posed a risk to homes.
