(WASHINGTONPOST) — Germany’s central bank warned on Monday that the country could be stressed by the region’s ongoing financial crisis, with signs of a slowdown accumulating in the euro zone’s largest economy even as it is being relied on ever more to prop up its neighbors.

“Confidence in German public finances is a key anchor of stability in the current crisis but it cannot be taken for granted,” the Bundesbank said in a monthly report that cautioned against what it called the potentially “unlimited” financial support being considered for troubled Italy and Spain.

The comments highlight the degree to which the success of the entire euro zone rests largely on the continued strength of a German economy that is looking vulnerable.

Note: Read our discussion guidelines before commenting.