SAMBALPUR: Odisha Police  detained family members of the Class 8 girl who died of burn injuries on Monday after she self-immolated in Bargarh district. The person who sold petrol to the 13-year-old has also been detained.Police said action will be taken against the man given that he violated govt order, which banned sale of petrol and diesel in plastic bottles and jars.IGP (northern range) Himanshu Lal said the case has a family angle. The girl’s 18-year-old brother was interrogated amid suspicion that the family could be involved in her suicide. Her  phone and  chats are being probed.