More than 250 bonfires were lit across Northern Ireland on Monday night to mark the beginning of the annual Twelfth of July celebrations.
The fires are ignited on the eleventh night, as part of Twelfth of July celebrations to commemorate the Battle of the Boyne in 1690 when Protestant King William of Orange defeated the Catholic King James II.
Traditionally the pyres are burnt around midnight in loyalist and unionist communities across the province.
Fire and rescue crews in Northern Ireland received a total of 203 emergency calls.
As the bonfires were lit, the Northern Ireland Fire and Rescue Service responded to 98 operational incidents.
A spokesperson said there was a 12.5% decrease in bonfire incidents compared to 2021, with the night's activity reaching its peak between 11pm and 1am.
They added that between 6pm on Monday and 2am on Tuesday, 35 of the 98 operational incidents NIFRS responded to related to bonfires.
"NIFRS maintained normal emergency response throughout the evening, attending a range of operational incidents including special service calls, a road traffic collision and other emergencies," the spokesperson said.
Police said they were gathering evidence after complaints about election posters and effigies being put on bonfires.