J.E. Warner s Weinstein who is 60 years old is Country Director for a US-based aid organisation (JE Austin firm) which is working on a development project in tribal areas.
8-10 entered in the house of Warner in early hours of Saturday and within 15 minutes take him away from his house which is located in posh area of Model Town.
Warner had been living in Pakistan for last five to six years.
A U.S. Embassy spokesman said they were trying to confirm the reports.