Hong Kong police arrest 2 tourists over graffiti on MTR Corp train carriages
Australian and American suspects arrested at the airport after allegedly breaking into Chai Wan depot and spray-painting carriages

The force said on Thursday evening that it had received a report at about 2pm the previous day that two men had forced their way into the depot by cutting sections of barbed wire at the top of its walls.
They allegedly spray-painted each of the carriages with a five-metre-by-one-metre (16.4-by-3.3-foot) graffiti design in green, yellow and pink.
“By going through vast amounts of CCTV footage … and intelligence analysis, police successfully arrested two suspects in the restricted areas of the airport who were waiting to board at around 8pm on the same day, six hours after the report,” Chief Inspector Chan Chi-leung said.