Supporters of Mothers and Fathers Matter are set to reinstall the group's campaign posters against the upcoming marriage referendum today.
The group says it has reported incidents of vandalism and theft of their posters to the Gardaí.
The group is holding an event in Dublin this morning at which the posters will be re-erected.
Mothers and Fathers Matter is campaigning for a No vote and claims the posters were damaged by those supporting a Yes vote.
The Yes Equality campaign said the removal of any poster in the run-up to the Marriage Equality Referendum is not something they want to see.
“It is an offence to take down any poster. We unreservedly condemn any such act,” said Brian Sheehan, Yes Equality spokesperson.
“Members of the public who witness the removal of posters should report it to their local Garda station.”