British Transport Police say it happened overnight Monday (2nd July) into Tuesday (3rd July)
Images of 4 large tags spreading the length of at least 3 windows have now been released.
BTP Devon & Cornwall tweeted to say those responsible risked their lives trespassing on the railway and their actions could land them with an unlimited fine or up to 10 years in prison.
They're now looking for those who caused the damage.
Council slashes child social services costs
Permanent recruitment rises
Teignbridge launches £300k 'Crisis Fund
Low-income families receive lifeline
More cliff falls expected at Shaldon
Tree surgeons working around clock
Seaton to bid for £2 million lottery funding
Go-ahead given to try and secure cash
Pine Martens thriving across Devon
Animals reproducing on Dartmoor and Exmoor
Tributes paid to councillor who died
Mike James was a 'role model to all'
