Donegal County Council has said it will remove any crosses that are causing a hazard to either pedestrians or road users.
Hundreds of white crucifixes have turned up overnight on the right hand side of the road from Bridgend into Letterkenny.
Motorists reported seeing the wooden crosses all the way from Bridgend and from the start of the dual carriageway to the Polestar Roundabout.
Today marks one week until Ireland goes to the poll to vote on whether to repeal the Eighth Amendment.
A spokesperson for Donegal County Council told the Donegal News: “Section 19 of the Litter Pollution Act provides for the control of postering in referendums.
“With regard to the proposal for the amendment of the Constitution contained in the Thirty-sixth Amendment of the Constitution Bill 2018, postering can begin from 28th March 2018, the date the polling order was signed.
“Posters must be removed within seven days of polling day. During this period the Council will only remove of posters which constitute a hazard to either pedestrians or road users.”