Bus Vannin says a dozen of its routes could face disruption today.
Illness and short-staffing means buses could be affected between 4pm and 11pm tonight.
Services could be cancelled between Douglas and Anagh Coar, Ramsey, Port Erin, and Ballachrink.
On Facebook, Isle of Man Transport says it'll keep updating passengers via Facebook.
Honda releases limited-edition TT-winning bike replica
Scammers target Manx.net email users over new fees
Locked-in cars at Villa raised by MHK
Chance to savour the vodka taste of knobs this week!
Santas on a bike returns!
Hop tu Naa in... Iceland?!
Liverpool sailing delayed by an hour
Dry cleaner to shut down