A church in the St Johnston area has been attacked and several windows were smashed.
A number of panes of glass were smashed at the Church of Ireland building at Craigadoes when stones were thrown at the building.
The incident happened between Friday and Saturday last, September 30/October 1st.
Garda Sgt Eunan Walsh has appealed to anybody who was in the area at the time to contact Gardai in Letterkenny.