Norwest Venture Partners participated in the referral marketing software developer's latest round, which lifted its total funding to $25m.

E-book platform Ridibooks closed its series A round with investments from financial services firm Mirae Asset and conglomerate Doosan.

Smartphone manufacturer Xiaomi has joined Coca-Cola, Atom Factory and O'Reilly Media as backers of the wearables company, which has now raised $63m in total.

Rocket Internet, which incubated Lazada, returned for a $248m round that added to funds raised from backers including Tesco, Access, Holtzbrinck and Tengelmann.

Nigeria-based e-commerce portal Konga has secured up to $50m in a series C round led by internet company Naspers.

Mobile marketplace app Carousell has raised $6m in a series A round that follows a Rakuten-led seed round last year.

Jumia, which claims to be Africa's largest e-commerce company, is now worth $555m after closing a MTN, Millicom and Rocket Internet-backed series C round.

Amazon is in talks with Rocket Internet-backed Jabong over an acquisition that would value it at between $1.1bn and $1.2bn.