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Nokia mistakenly leaks Lumia 1520 details on Chinese site

The company's page claims that the handset will come with a 6-inch display and 20-megapixel PureView camera.

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The rumors of Nokia planning to launch a high-end smartphone at its Nokia World event Tuesday might just prove true.

The company on Sunday mistakenly published details about the Lumia 1520 on its official Tmall store in China. Tmall is an online marketplace in China.

Catch our live coverage of Tuesday's Nokia World event here.

According to Engadget, which was first to catch the listing, the Lumia 1520 listing indicates that the handset will feature a 6-inch 1080p display and 20-megapixel PureView camera. The page also claims that the smartphone will feature a Qualcomm Snapdragon 800 processor, according to Engadget.

Rumors have been swirling for weeks that Nokia would unveil a new flagship Windows Phone device, and if the leaked marketplace listing is true, that appears to be the case. We'll find out for sure on Tuesday when Nokia is expected to unveil several new handsets.