Patna: Police in Gopalgnaj district on Friday arrested the owner of Sasamusa sugar mill - where six workers died and six others suffered burn injuries on Wednesday night - and his two sons.

Mahmood Ali and his sons Khabar Ali alias Munna and Zishan alias Rinki were produced in the court of additional chief judicial magistrate-VII, which remanded them to judicial custody for 14 days.

The father and sons were taken into custody for questioning on Thursday.

A senior police officer said the arrests came after the son of one of the dead workers filed a police complaint accusing the mill owner of ignoring safety norms.

Gopalganj superintendent of police Mritunjay Kumar Choudhary said two other FIRs have also been lodged, one by another worker's kin and one by Gopalganj labour inspector Manoj Kumar Dubey. "Lack of proper maintenance of equipment led to the deaths," Dubey said.

The third FIR has been filed by Abdullah, head clerk of the mill, alleging that the mob that attacked the mill owner's house looted valuables worth over Rs 5 lakh. The mob had also set a car on fire.

The FIR also accuses the mob of thrashing general manager of the mill Jamaluddin, who is around 80 years old. The state government has already ordered its own probe into the workers' deaths.