An operation, referred to as Operation Hard Ball, has been undertaken by the US, reportedly in connection with a gangster-Khalistan nexus. The US has also issued a charge sheet and offered a reward in relation to the murder of an individual named Nijjar. There are conflicting reports about the involvement of Indian officials in the US probe into Nijjar's killing, with Canada stating there is no evidence linking them, while other details of the operation and its connections are still emerging.