An Apprentice Boys hall in Moy in County Tyrone has been damaged in an arson attack.
The fire at the building on Gorestown Lane was reported at about 1740 BST on Friday.
When emergency services arrived they found the door had been forced and a fire set just inside. Minor smoke and fire damage was caused.
The incident follows attacks on Orange halls in Rasharkin and Claudy in the early hours of Thursday.
There has also been a spate of attacks on Orange halls in County Armagh.
First Minister Ian Paisley said he had discussed the attacks with Security Minister Paul Goggins on Friday.
"I am extremely concerned at the pattern of attacks on Orange halls that is again very much in evidence," he said.
"Those elements who are determined to attack our culture and heritage must be caught and made accountable for their actions."