Punjab Police on Wednesday said it has "unearthed a critical espionage network" linked to YouTuber Jasbir Singh, who was in touch with arrested YouTuber Jyoti Malhotra. Singh, who runs 'Jaan Mahal' YouTube channel with 1.1 million subscribers, has been arrested. He was in touch with expelled Pakistan High Commission official Danish and Pakistani Intelligence Operative Jutt Randhawa, police said.