Loyalist paramilitaries have been blamed by the PSNI for a series of overnight attacks on Catholic churches and Catholic-owned businesses in Co Antrim.
PSNI Chief Inspector Stephen Martin warned that if the attacks did not stop, someone would end up "losing their life."
Crebilly Chapel on the outskirts of Ballymena and All Saints Chapel on the Broughshane Road were damaged in the attacks.
The remains of a petrol bomb were found at the Glen Way Tavern on the Glenravel Road in the Martinstown area of the town. The premises was seriously damaged in the attack.
Nobody was hurt in the fire which swept through a bar at Martinstown. The remains of two petrol bombs were found outside a second bar at Rasharkin, where there was slight damage.
Chief Inspector Stephen Martin said targeting church property was "absolutely disgusting and disgraceful".
Questioned about those responsible, he said: "It's loyalist paramilitary and we're looking very carefully at who is involved."
The SDLP said a "concerted attack" had been made against Catholics in Ballymena. "This situation has reached a dangerous level and calls for a clear stand to ensure community relations are not damaged beyond repair," the party said in a statement issued in the name of three local representatives.
"Community leaders with in the loyalist community have a clear responsibility to use all their influence to end these attacks."