GBPUSD broke below the lower border of the rising price channel on 4-hour chart. Range trading between 1.6454 and 1.6741 is expected in a couple of days. However, the price action from 1.6741 is more likely consolidation of uptrend from 1.6113, one more rise towards 1.6900 zone is still possible after consolidation and a break above 1.6741 will signal resumption of uptrend. Key support is at 1.6454, only fall below this level will indicate that the rise from 1.6113 has completed at 1.6741 level already, then the following downtrend will take price back to re-test 1.6113 support.