AMRITSAR, Sept. 11 -- The Amritsar police on Wednesday arrested four more drug smugglers and recovered 12kg of heroin along with a pistol and magazine, director general of police Gaurav Yadav said.

The arrests came following a probe into the recovery of 8.1kg of heroin a few days ago from a notorious smuggler, Soni Singh alias Soni, and his four associates.

"Four more drug smugglers were arrested and 12 kg of heroin was seized along with a .30-bore pistol and a magazine from their possession, taking the total seizure of heroin in this case to 20.1kg, the DGP added.

Those arrested have been identified as Gurbhej Singh (50) and his son Gurdit Singh (22), both residents of Narla village in Tarn Taran; Malkit Singh (50) of Dall village in ...