Sectarian graffiti has been sprayed onto doors of a Catholic church in Coleraine overnight.
A window of the church in Nursery Avenue was also smashed.
Meanwhile, in Portstewart, sectarian graffiti was daubed on the wall of a house in Mill Road.
In Rasharkin, graffiti was sprayed over the walls of a GAA club in Dreen Road.
The police have said the incidents are not being linked at the moment.
On Thursday, the parish priest of St Malachy's in Coleraine said graffiti was sprayed at the front of the church which attacked the Pope and referred to the death of Kevin McDaid.
Mr McDaid, a 49-year-old Catholic community worker was attacked by loyalists after a row over republican flags in the Somerset area Coleraine last year.
Fr Gregory Cormican said a window was smashed and attempts made to set the listed building alight with burning rags.
He said the congregation was saddened by the overnight attack at on the church.
"People here are very annoyed. It is not a good reflection of relations in Coleraine," he added.
Meanwhile, Sinn Fein's Daithi McKay has condemned the attack on the GAA club.
Mr McKay said: "This attack is clearly sectarian in nature and will be condemned by all sides of the community here."
Police have appealed to anyone with information concerning the incidents to get in contact with them.