Jersey Police has released CCTV footage of two suspects who threw flaming bottles across the car park of St Saviour's Parish Hall on Monday 2 May.
One bottle hit the floor and the other hit and damaged a parish vehicle just after 9pm.
Nobody was harmed or injured.
Officers want anyone who recognises the two people in the footage to get in touch.
The force is particularly keen to speak to the drivers of cars who went past the parish hall at the time of the incident.
Anyone with information is asked to call the police on 612612 or Crimestoppers anonymously on 0800 555 111.
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