Pakistan Tehrik-e-Insaf spokesperson on foreign affairs Shirin Mazari has claimed that a US base is being built in Gharo area in Sindh. Addressing a news conference on Wednesday, Shirin Mazari said the United States was poking its nose in all affairs of Pakistan and when she started writing columns on the matter, the US Ambassador exerted pressure so that she could not write. Mazari said her life was under threat, adding that the Minister for Interior and US diplomats would be responsible if anything happened to her. She said steps being taken by the US were a clear interference in Pakistans internal affairs.