Jharkhand chief minister Hemant Soren on Saturday constituted a two-members inquiry committee to probe the Friday violence at Ranchi in which two persons were killed while several were injured.
The committee comprising additional DG of police Sanjay Latkar and tourism secretary Amitabh Kaushal will submit its report within a week.
Two persons were killed in police firings and 12 others were admitted to the Rajendra Institute of Medical Sciences (RIMS) following bullet wounds.
Prohibitory orders which were imposed on Friday evening have been extended to 12 police stations jurisdiction areas and internet services remained banned for the second consecutive day on Saturday.
Preliminary investigations by police confirmed antisocial elements had reached from Uttar Pradesh to Ranchi last week and were staying in a religious place in the Hindipeedhi area.
SSP of Ranchi SKJha said, "those involved in the attack on the vehicle of Nitin Nawin, Road Construction Department Minister from Bihar have been detained."
The district administration acted immediately and imposed a curfew in violence-hit areas of Ranchi thereby bringing the situation under control.