New neighbor's nightly bonfire

A dude has bought the house behind ours and has moved in some more dudes and they're all remodeling/partying together. Totally cool with all of that. Each night they have a big fire & burn the construction debris/old fencing/tree limbs/etc. AFD has been called and had them put it out but the fire is immediately restarted after they leave. The immediate neighbor talked to them, and we've made a 311 report but it's still lit every night around sunset. Is there anything else we can try? It feels incredibly unsafe with the old-growth, unkept greenbelt right beside them.