That's according to the National Transport Authority, which says it's been an ongoing issue for over 18 months.
Tim Gaston from the NTA said the gangs were coming to Ireland specifically for the purpose of increasing their social media profiles.
Mr. Gaston says Irish Rail and its security have worked very closely with Gardai, and have arrested several of the graffiti artists.
Wicklow Businesses Are Staying Competitive with Skills Training
Almost all businesses taking part in training were small and medium-sized enterprises.
Joy Unconfined As Wicklow Town's Shrine To Mayo Bears Fruit At Long Last!
May-O, May-O Maaaaayyyyyyyyyooooooo ....... ''Sam Maguire is coming home to Mayo'', and for one Rathdrum based homeowner, it's manna from heaven!
Wicklow Households Among 1.7 Million Impacted By Uisce Éireann's Bank Holiday Repair Plan
Wicklow customers are encouraged to sign up for text alerts ahead of the bank holiday weekend to receive real-time updates specific to their area during the repair operation.
Early Hours Rescue Brings Three People To Safety
Wicklow RNLI towed a vessel to safety after its engine developed mechanical issues 11 miles southeast of Wicklow Harbour late last night.
Irish Coast Guard, RNLI and Water Safety Ireland urge everyone to 'Unite to Turn the Tide
July has been one of the busiest months in years for rescue services, with warm weather bringing more people to Wicklow beaches, rivers and lakes.
8:00pm - 10:00pm
Love Songs on the Coast
Sunny intervals
High: 22°C | Low: 16°C
Sunny intervals
High: 22°C | Low: 16°C
Medium-level cloud
High: 25°C | Low: 15°C
Sunny intervals
High: 25°C | Low: 15°C
Sunny intervals
High: 24°C | Low: 15°C
