Robbers today looted Rs 30 lakh from a branch of a nationalised bank in Sohsarai police station area of Nalanda district.
Superintendent of Police Vivekanand said three motorbike borne men entered the bank located in Sohsarai market and took out Rs 30 lakh in cash holding the employees at gun point.
The robbers also assaulted some of the employees and snatched mobile phones from them and threw it in water.
A probe was on in the matter and raids were being carried out to nab the culprits, the SP said.