Over 600 people took part in a Shell to Sea national demonstration in Dublin at the weekend to highlight continued opposition to the construction of the Corrib gas pipeline and terminal in Co Mayo.
There was a strong Garda presence as protesters gathered at the Garden of Remembrance on Parnell Square at 2pm on Saturday before making their way up O'Connell Street.
The march finished at the GPO, where a number of politicians and trade union leaders addressed the crowd.
Speakers included Mícheál Ó Seighin of the Rossport Five, Michael O'Reilly, regional secretary of the ATGWU and Socialist Party TD Joe Higgins.
The protest was supported by the Dublin Council of Trade Unions, the Waterford Council of Trade Unions and the Dublin Busworkers branch of the National Bus and Rail Union.
Another of the Rossport Five, Willie Corduff, said before the protest that the local community had no option but to continue to fight against the €900 million project being built onshore in north Mayo.
"We can't let up," he said. "We have no choice. What people I think don't understand really is if Shell are going to get in there, we'd have to get out.
"We're not against the gas. . . or we're not against the work or anything else, but why don't they do it at sea? Do it clean. Why pollute an area that's unpolluted?"
In a statement, Shell E&P Ireland said the Corrib gas partners had "consistently stated that the gas is being processed onshore for safety and environmental reasons and is in line with best international practice."