Politicians and campaigners have complained after posters linked to the assembly elections were taken down.
Anti-abortion campaigners accused Sinn Féin members of removing pro-life posters from outside a church in Co Tyrone.
Dungannon-based St Joseph’s Pro-Life Group claimed they were removed during a Confirmation ceremony in St Patrick’s Church in Eglish on Friday.
The group has targeted Sinn Féin candidates since the party voted last year to allow abortion in cases of fatal foetal abnormality.
Campaigner Catherine Sewell described the removal of the posters as “deplorable”.
A spokesman for Sinn Féin said: “There should be no interference with posters over the period of any election.”
Meanwhile, Sinn Féin North Belfast candidate Gerry Kelly described the removal of some of his party's posters in the Cavehill and Oldpark Road areas of north Belfast as “anti-democratic”.
“Political parties should be allowed to go about legitimate campaigning without intimidation or attack," he said.
