Locals intercepted the Muzaffarpur-bound truck at Shahpur bazar, overpowered three men travelling in the vehicle even as another occupant fled from the spot, district magistrate Sanjeev Kumar said.
The three persons were then handed over to the police.
The truck was carrying meat from the illegal slaughter house at Rani Sagar locality under Shahpur police station area, the DM said.
The meat sample has been sent for testing, he said.
Strict action will be taken against those running the illegal slaughter house, the DM said.
After senior police officials rushed to the spot and pacified the protestors, the blockade was lifted.
Disclaimer: No Business Standard Journalist was involved in creation of this content