The China-based e-commerce company is set to extend its acquisition activity by buying navigation service AutoNavi in a deal worth about $1.5bn.

The healthcare company made a 52% profit from the sale of its 11% stake, originally acquired in 2012, back to Vodafone for $1.48bn.

Geolocation platform KitLocate has been purchased by Russian internet company Yandex for an undisclosed sum.

The Russian internet company has agreed to acquire an additional 12% share of social network Vkontakte, lifting its overall stake to 52%.

OpenTable, an online restaurant reservation provider, has acquired SingTel and Amex-backed Ness Computing, a US-based provider of personalised restaurant recommendations, for $17.2m.

Toyota Tshuho has bid $470m for a 51% stake in the Malaysia-based Kian Joo Can Factory, but looks set to be seen off by an existing bidder with links to the business.

Burstly, a smartphone app development company responsible for the beta-testing platform TestFlight, has been acquired by Apple.

IBM has agreed to acquire Cloudant, a cloud database company backed by In-Q-Tel, Rackspace, Devonshire Investors and Samsung Ventures, to "help its clients take advantage of big data, cloud and mobile."

Mobile gaming firm and Oxford spin-out NaturalMotion acquired by gaming platform Zynga for $527m.