India, May 6 -- Punjab Police continued its statewide crackdown on farmer leaders and stepped up vigil in Patiala district on Tuesday to prevent protesters under the banner of Kisan Mazdoor Morcha and Samyukt Kisan Morcha (Non-Political) from heading to Shambhu police station on the border with Haryana for a day-long dharna.

Police set up a naka (check-point) on National Highway 44 near Shambhu barrier to stop the farmers from reaching the police station, leading to traffic jams. Police personnel were checking every vehicle and allowing passage only to those headed toward Delhi or Haryana.

All roads leading to Shambhu police station were heavily barricaded. Senior police officers, including Patiala SSP Varun Sharma, were on the field, e...