Commerzbank may face greater than expected losses on investments in the U.S. subprime mortgage market, reports Reuters UK. The bank had previously set aside €80 million ($111 million) to cover subprime losses but that may not be enough. “Since that estimate was announced the situation has become more critical,” said a source, adding that the bank now faced having to make a higher charge. “There is no market at the moment - it could go in any direction.” Another source said that the company could face a loss of €500 million ($703.36 million) but that it was impossible to tell at this point. A spokesperson for the bank said that it hasn’t changed its loss estimate but that it may do so in the future.