Update, Monday: 27east.com reported that the Southampton Town Zoning Board of Appeals decided Thursday to revoke the portion of Wainscott Sand & Gravel's certificate of occupancy that allows mulching operations.
Update, 1 a.m.: Firefighters have knocked down the blaze and have returned to their respective fire houses.
Update, 11:30 p.m.: Tankers from and Southampton fire departments were called to the scene of a brush fire at the Wainscott Sand & Gravel sandpit on the Bridgehampton-Sag Harbor boarder.
Bridgehampton and Sag Harbor fire departments have fighting the fire that started in a large pile of mulch for about two hours already.
Previously: A big mulch pile in an industrial sandpit in Sag Harbor caught fire on Saturday night.
The brush fire was discovered after heavy black smoke was reported in the area at about 9:30 p.m.
chiefs investigate the call, which was reported from their district, and found the smoke was coming from the Wainscott Sand & Gravel pit. The nearly 50-acre sand mining facility is located at 585 Middle Line Highway, off Millstone Road, on the Bridgehampton-Sag Harbor boarder, which is in 's fire district.
A mulch pile was reportedly ablaze.
Bridgehampton and North Sea tanker trucks were requested to knock down the fire.
Did you see or smell the smoke? Tell us in the comments below.