Four men have been arrested and charged with grafitti offences over an incident involving coal train carriages at Unanderra on Friday night.
Police were called to the Five Islands Road rail yard after security noticed a number of people spraying graffiti on carriages.
Transport command officers as well as the dog squad attended and searched the area before finding four men near a vehicle on Waynote Place, Unanderra.
The group was searched, with police allegedly uncovering several spray paint cans and other graffiti items.
The men were arrested and taken to Wollongong Police Station.
Three of them – aged 18, 22 and 25 – were all charged with possess graffiti implement and enter inclosed land not prescribed premises without lawful excuse.
The 25-year-old man was also charged with intentionally mark premises without prescribed consent.
A second 25-year-old man was charged with possess graffiti implement.
They were all granted conditional bail to appear at Wollongong Local Court in September.