In photos: Eleventh night bonfires lit across Northern Ireland
Families enjoyed a children's bonfire in Ballysillan, north Belfast
Craigyhill bonfire in Larne is believed to be one of the world's tallest
- Bonfires are lit in some unionist areas on 11 July to kick off the Twelfth celebrations
- They mark the Battle of the Boyne in 1690 when the Protestant King William III defeated Catholic King James II
- Bonfires were lit to welcome - and guide - King William
- They are largely constructed from wooden pallets