Chinese internet giant Alibaba eyes US share sale

Chinese internet giant Alibaba has filed documents for a public share sale in the US, which is widely expected to be one of the biggest in history.

In its filing, the company said it was seeking to raise $1bn (£589m). But that figure is seen just as an estimate to calculate various fees.

Analysts expect it to raise more than $15bn and top Facebook's share sale.

John Sudworth reports from Shanghai.