GBPUSD broke below the bottom support trend line of the price channel on the 4-hour chart, suggesting that the upside movement from 1.3711 had completed at 1.4244 already. Further decline would likely be seen in the coming days and next target would be at 1.3889 support. Resistance levels are at 1.4130 and 1.4244, only break above these levels could trigger another rise towards 1.4345 (Jan 25 high).