GENEVA, Switzerland (PNN) - May 27, 2012 - Switzerland does not foresee a break-up of the euro zone but is nonetheless drawing up an action plan in the event of its collapse, the country's central bank chief said on Sunday.

Thomas Jordan, who became chairman of the Swiss National Bank last month, told the SonntagsZeitung newspaper that a working group was discussing measures to combat any strengthening of the safe haven Swiss currency.

Jordan said the euro zone crisis had worsened in recent weeks and he foresees bumpy times ahead.

"The working group is focusing mainly on instruments to combat a strengthening of the franc," said Jordan. "We have to be prepared for the scenario of a currency union collapse, although I don't think that will happen. One measure would be capital controls, that's to say, controls directly influencing the flood of capital into Switzerland," he said, declining to give further details.

The SNB has consistently said it will enforce the minimum rate and is prepared to buy unlimited quantities of foreign currencies if necessary.

The cap was introduced after the franc posted a sharp gain in value last year, going from 1.23 to the euro at the beginning of July to less than 1.05 a month later.

"Maintaining the minimum price is the monetary policy that we will continue with determination for the foreseeable future," said Jordan.

The euro had extended its slide against the dollar Friday, dipping below $1.25 under pressure from uncertainty over the future of Greece in the euro zone, and the risk of contagion from its debt crisis.