A coconut left inside a coffin in Bolton, Manchester, 'sent fear' through crematorium staff when it exploded - and mourners have now been urged not to 'slip' items in with the deceased.
Bolton Council asked grieving family members and friends to stick to crematorium rules and to not add any items into coffins that could become dangerous.
Donna Ball, Assistant Director of Community Services, said a 'hell of an explosion can sometimes occur'.
'We have seen a rise in things like e-cigarettes, and mobile phones. Mobile phones in particular are a real issue for us'.
Ms Ball told the BBC: 'Usually the funeral director will pick them up but sometimes things are slid inside peoples' pockets and they are just not picked up during the process, then when they go through the cremation process a hell of an explosion can sometimes occur'.