German Chancellor Angela Merkel said she was convinced it was still possible to reach an accord with Greece on its crippling debt crisis, ahead of crunch EU meeting Thursday.

"It remains the case that Germany's efforts are aimed at keeping Greece in the eurozone," she told the Bundestag lower house of parliament.

"I am still convinced -- where there's a will, there's a way. If the political leaders in Greece demonstrate this will, then a deal with the three institutions is still possible."