The Northern Ireland Fire and Rescue Service (NIFRS) has appealed to those building bonfires to “take care” and when they are lit later on Monday night.
More than 250 bonfires have been constructed in loyalist neighbourhoods across Northern Ireland ahead of Monday night's planned festivities. Most are built by stacking wooden pallets.
The fires are traditionally ignited on the eve of the annual Twelfth of July parades - a day when members of the Orange Order parade to commemorate the Battle of Boyne in 1690.