Campaigners yesterday launched a legal challenge against controversial plans to build a car ferry terminal on the shores of Carlingford Lough.
Activists lodged papers at the High Court in Belfast applying for leave to take a judicial review against Newry, Mourne and Down District Council, which approved the £7m project.
A spokesman for the Greencastle: Keep It Green campaign said he was also disappointed Environment Minister Mark H Durkan had signalled he would not be seeking any further consideration of the proposal.
"It appears the council has made errors in processing the latest application to allow pile-driving in April," he said.
The council said the granting of permission to pile-drive was "a variation to one of the conditions attached to the original granting of planning permission".
The Green Party and the RSPB have expressed concerns about the project's potential impact on the local environment.