Thieves stole the 50 seater 1992 yellow Lough Swilly bus from Carndonagh in the early hours of Tueday morning.
They then drove the bus for six miles around narrow country roads before abandoning it across public road on the Isle of Doagh.
The theft only came to light when shocked motorists couldn’t get past the abandoned bus at around 5am.
A Garda source described it as a very dangerous incident which could have had much more serious consequences.”
Anybody with any information is asked to contact Carndonagh Garda Station on 074 93 74109.