Audio from RNAF F-16s intercepting a Delta 767 from Istanbul to New York on 10 August. Apparently, the 76 hadn't contacted the next sector ATC yet, and the Vipers were scrambled to take a look.
http://www.zap16.com/Intercept%20f16%20B767%20Delta.htm
http://www.zap16.com/Intercept%20f16%20B767%20Delta.htm