Vaishali Superintendent of Police Suresh Prasad Chaudhary said two persons, Abhishek Kumar and Mukesh Kumar, traveling in the vehicle, have been detained in this connection.
"The seized money includes US dollar, dirham, riyal and dinar of various denominations. We have informed the Election Commission and the Income Tax personnel about this. Further probe is being conducted in the matter," said Chaudhary.
Police said the detained persons were traveling from Siwan to Patna when they were intercepted at the police check post at Anjanpir Chowk.
"We are trying to verify their identity and what they were doing with currency notes of other countries in the interior areas of Bihar and whether there is some hawala connection to this," said Kumar.