The reported leaks of classified Pentagon documents show that "the Americans have always been carrying out espionage," said Tughral Yamin, a senior research fellow at the Institute of Policy Studies, an Islamabad-based think tank.

　　Earlier this month, reports on batches of alleged U.S. intelligence documents that were uploaded on social media platforms such as Twitter and Telegram grabbed headlines.

　　According to U.S. officials, several of the documents are authentic and are believed to have been generated between mid-February and early March. They contain extensive top-secret data related to U.S.-friendly nations, including Ukraine, South Korea and Israel.