The fire, near Llangefni, was reported to North Wales Fire and Rescue Service shortly before 8.30pm. Residents in the surrounding area were advised to keep windows and doors shut due to the smoke. In an update, a spokesperson for North Wales Fire and Rescue Service said: "We’re currently damping down at an agricultural barn fire near Llangefni. "The call was received at 8.23pm last night, and at the height of the incident, six fire appliances and two specialist appliances were at the scene. "One appliance has remained in attendance overnight."