Royal Mail has been contacted to 'investigate'
The Post Office says a proportion of its mail has arrived on the Island water damaged this morning.
It says the matter has been raised with Royal Mail to "investigate how this happened."
The number of letters and packages damaged has not be revealed.
Isle of Man Post Office has apologised to anyone affected and says you can contact their customer service team on 664664.

TT launches sustainability review into Sidecar class
Manxman sailing cancelled following late arrival into Douglas
Calls for 'transitional protections' for migrants on five-year immigration path
'No decisions have been made' over future of Ballabeg Methodist Church
Manxman's departure to Heysham delayed