U.K. Power Networks said a power cut affecting 116 customers across three postcodes in the area is under investigation.
Meanwhile, officials have quelled concerns about nearby nuclear power stations.
An EDF Energy spokesperson told TIME “the fire at Dunwich Heath is not currently affecting operations at Sizewell B power station but we are continuing to monitor the situation—we are not on high alert.”
Suffolk Fire and Rescue Service also said neither Sizewell B or Sizewell C—a second nuclear power station under construction nearby—are considered to be at risk.
“At the moment, Sizewell B and C are being monitored. We’re in consultation with them, but we’re not worried about fire spreading in that direction,” Lacey said.
Jenny Riddell-Carpenter, the Member of Parliament [MP] for Suffolk Coastal, praised the efforts of local officials and urged people to steer clear of the vicinity.
“I am so grateful, as I know so many others are, for the work of the fire brigade and the emergency services,” she said. “Please do avoid the area, and allow the fire and emergency services the space to respond.”