European Central Bank President Mario Draghi said the economic outlook is worsening and the bank stands ready to activate its bond-purchase program if governments fulfil the necessary conditions.

"We are ready to undertake" Outright Monetary Transactions, "which will help to avoid extreme scenarios," Draghi said today at a press conference in Frankfurt after policy makers left the benchmark interest rate at a historic low of 0.75 percent. "The risks surrounding the economic outlook remain on the downside" and underlying inflation pressures "should remain moderate," he said.

Draghi yesterday fueled speculation that the ECB might put rate reductions back on the agenda, saying the debt crisis is starting to hurt Germany — the pillar of economic strength in the euro area — and that inflation risks are "very low." Still, Spain is resisting asking for a bailout that would open the door to ECB bond purchases, stalling the central bank's efforts to repair its monetary policy transmission mechanism.