The police chased Amritpal Singh for some 16-17 km, said the top cop leading the massive search operation against the Khalistani sympathiser. “We had decided not to use lethal force in this operation. Have successfully arrested 78 associates of Amritpal. We chased him for 16-17 km. He took cover in a crowded place,” said DIG Jalandhar Swapan Sharma, adding that the police are closing in on him.