Zurich Insurance Group AG (SWX:ZURN) is considering a sale of some of its general insurance assets in Australia as the Swiss firm seeks to streamline its portfolio, according to people familiar with the matter. The insurer is working with an adviser on the potential divestment of non-core commercial assets in the country, the people said, asking not to be identified because the matter is private. A sale could fetch a few hundred million dollars, and may draw interest from other insurers and investment funds, the people said.