Reuters just ran the FT headline from the Portuguese FinMin saying that there is a high risk that Portugal may need EU aid and that may be what it took to send EUR/USD to fresh intraday lows at 1.3590.

Support lies below the market around 1.3575 and then 1.3560. Expect 1.3550 barriers to be defended…

Last time below 1.3600 there was very strong buying from Asian central banks, some options-related, some said to be for reserve diversification.