An SMRT train was vandalised at the Bishan MRT Depot earlier this week.
Police said they received a call on 5 May at 6.17am requesting for assistance at the depot located along Ang Mo Kio Avenue 1.
It is the second time SMRT trains at Bishan Depot have been vandalised. The first time was in August 2011.
SMRT confirmed that one of its trains was vandalised.
It has made a police report and is helping police with investigations.