A man has been arrested on suspicion of criminal damage following a house fire in Burgess Hill on Wednesday evening (May 27).
Sussex Police said officers were called to a domestic incident in Firtoft Close at 8.52pm.
The alleged victims of the incident had gone to a neighbouring property, said police.
Officers were interviewing them at the neighbouring property when they saw smoke coming from the house.
Firefighters were called and extinguished a number of fires that had caused extensive damage inside.
A short time later, a 27-year-old man from Burgess Hill was arrested nearby.
He was questioned and later bailed to return on July 23.