AUDUSD extended its downside movement from 0.6773 to as low as 0.6709. As long as the price is below the trend line on the 4-hour chart, the downside movement could be expected to continue and next target would be at 0.6670 support. On the upside, a break of the trend line resistance would indicate that the downtrend is complete, then another rise towards 0.6800 could be seen.