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.
Young voices barely registered in devolution consultation
Only eight people under the age of 24 registered a view
New pledge on South Hams Freeport funding
'It is taxpayers’ money, but that money is being spent in the South Hams'
Axminster children connect with space station
Space cadets link live with astronaut
East Devon should get new CEO
Local Government Association recommends new boss
Long-serving County Council leader steps down
John Hart leaves after 15 years
Football club changes kit to honor former player
Exeter Royals' tribute to young star
