By Kanishka Singh, Asif Shahzad and Ariba Shahid WASHINGTON/ISLAMABAD (Reuters) -The U.S. and Pakistan have struck a deal that will result in lower tariffs for the South Asian nation as well as an agreement in which Washington will help develop Islamabad's oil reserves,

Pakistan's Prime Minister Shehbaz Sharif took to social media on Thursday to thank Trump over the "historic" trade agreement and expressed hope that it would expand cooperation between the two sides.