Uber has expanded its most recent round of funding by $1 billion, the New York Times reported Wednesday, citing Delaware Secretary of State documents.

This brings Uber's Series E round of funding up to $2.8 billion. In December 2014, Uber announced its $1.2 billion Series E round, funded by New Enterprise Associates, Lone Pine Capital, Valiant Capital Partners, and Qatar Investment Authority.

Chinese search engine Baidu contributed $600 million to Uber's Series E round in December too. 

Last month Uber raised a $1.6 billion round of convertible debt financing from Goldman Sachs, which was separate from its December fundraising.

When Uber announced its Series E round back in December on the company's blog, CEO Travis Kalanick said it would be using the investment money to create more than 1 million jobs in 2015 and to "make significant investments, particularly in the Asia Pacific region." Kalanick also vowed that his company, which had its share of public relations mishaps in 2014, would be "smarter and more humble" moving forward.

Uber confirmed the expansion to the Times. 

Uber is one of the most valuable private tech companies in the world with a $41 billion post-money valuation. Uber has raised over $4 billion since its founding in 2009. 

--This story first appeared on Business Insider.

Published on: Feb 19, 2015