Soaring borrowing costs push Italy to the edge

ROME/LONDON — Italian borrowing costs reached breaking point on Wednesday after Prime Minister Silvio Berlusconi's promise to resign failed to raise optimism about the country's ability to deliver on long-promised economic reforms.

Italian 10-year bond yields shot above the 7 percent level that is widely deemed unsustainable, reflecting investors' concerns that they may not get their money back, prompting German Chancellor Angela Merkel to issue a call to arms.

Merkel said Europe's plight was now so "unpleasant" that deep structural reforms were needed quickly, warning the rest of the world would not wait.