Police have interviewed two boys as part of an investigation into the suspected arson at a village green in east Suffolk.
Dozens of firefighters were called to the incident in School Road in Knodishall, near Leiston, shortly before 8pm on Sunday.
A total of 33 appliances were dispatched to the scene from across Suffolk, with some remaining on site until Monday afternoon.
More than 100 people were evacuated from their homes on Sunday evening as fire crews fought the blaze.
Suffolk police later confirmed officers are treating the fire as a suspected arson and were appealing for witnesses.
A police spokesman said a boy had been interviewed at Halesworth police station, with another boy set to be spoken to later on Tuesday.
The boys are both over 10 years old, a police spokesman said.
Anyone with footage or information related to the incident is asked to contact Suffolk police, quoting crime reference number 37/47244/22.
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