HIGHER RATES: Spain had to pay a sharply higher interest rate in an auction of short-term bonds Tuesday, highlighting growing concerns that the country might eventually need foreign help to finance itself.

THE DETAILS: The Treasury raised €3.39 billion ($4.28 billion) in 12- and 18-month bills, more than its upper target of €3 billion. But it had to offer an interest rate on the 12-month bills of 5.07 percent, up from 2.98 percent at the last such auction on May 14. The rate on the 18-month bills soared to 5.10 percent from 3.3 percent.