Amazon has pulled 5,000 Kindle ebooks from its online offering after a dispute with the Independent Publishers Group. The decision has fuelled concerns over Amazon’s increasing market dominance in the publishing sector and the pricing of ebooks, which until now have been set by publishers.

Mark Suchomel, president of the Independent Publishers Group, said it had been negotiating a new ebook contract with Amazon, but the retailer had wanted more favourable terms. Declining to give specific details, Suchomel said: “It decided that what it was getting last week is no longer good enough this week.”

Amazon is continuing to sell the titles in hard copy.