Police in the Cook Islands say they are treating three house fires last weekend in the Rarotongan village of Nikao as suspicious.
The first fire was reported on Saturday with another two fires lit nearby the following day.
A family home was destroyed in one of the fires.
A team of investigators and members of the Rescue Fire Service are gathering information from nearby residents as they try to find out who is responsible.
Police say they are working through a list of suspects.