Isle of Man Post is warning its customers could be affected by industrial action in London today (Friday).
The Communications Workers Union has also announced action in Edinburgh, Bristol, Darlington, Stoke-on-Trent, Plymouth, Norfolk and Essex.
Post is being forwarded as normal but it may be delayed if it is being sent to an affeted area.
Normal service will resume on Saturday.
Budget 2026: Treasury Minister’s plan for ‘stability, security and confidence’
Chris Thomas unveils financial outlook for year ahead
LIVE BLOG: Treasury Minister unveils final budget of Cannan administration
Chris Thomas delivers major speech setting out government spending, after only a month in the job
Budget 2026: Largest personal tax uplift could help boost local economy
Taxpayers could be almost £500 a year better off
Budget 2026: Chris Thomas to deliver Budget speech this morning
It's already known personal allowances will be going up
