Amazon profits boosted by Kindle

The online retailer, Amazon, has reported a 16% rise in third-quarter profit, as its Kindle e-book reader continues to bolster sales.

Amazon made a net profit of $231m (£147m) in the three months to September, up from the $199m it made in the same period a year earlier.

Revenues rose 39% to $7.56bn.

But the firm also said that its total operating expenses rose more than 40% to $7.29bn, sending its shares down 5% in after-hours trading.

Michelle Fleury reports.