GBPUSD broke below 1.4008 support and extended its downside movement from 1.4244 to as low as 1.3965. Further decline could be expected in a couple of days and next target would be at 1.3889 support. Below this level would aim 1.3700 zone. Key resistance is now at 1.4096, only break above this level could signal completion of the downtrend.