Two Special Task Force (STF) teams have been sent to Rohtas and Katihar to procure details about the arrested members of a hi-tech job racket unearthed on Saturday.

Four members of the racket were arrested at Bhikhna Pahari in Patna. While Raj Kumar Singh and Dinkar Pandey belong to Rohtas, Ajit Kumar and Varun Kumar are residents of Katihar. They had promised jobs in the railways. Sources said the kingpins — Mukesh Kumar and Sanjay Kumar — were still at large. IG (operations) Amit Kumar said instructions were issued to conduct in-depth investigation.