India has expressed serious concern over the misuse of the US arms assistance to Pakistan. Defence Minister A.K. Antony conveyed his concern to the US Secretary of Defence Robert Gates in Washington on Tuesday. Mr Antony said, while the US is giving these arms to Pakistan to fight terror, Islamabad is diverting it against India. Mr Antony, who arrived in Washington on Sunday, also held meetings with the US Secretary of State Hillary Clinton and National Security Advisor Gen. James Jones. Pakistan's continuing support to India-centric terrorist groups, Afghan-Pak situation and other regional and global security issues came up during the discussions.