A self-driving car technology start-up founded by former Google, Tesla and Uber executives says it has secured $530m in new funding that included a "significant" investment from Amazon.
The funding round for Aurora Innovation led by Silicon Valley venture capital powerhouse Sequoia reportedly valued the start-up launched just two years ago at more than $2.5bn.
"We are always looking to invest in innovative, customer-obsessed companies, and Aurora is just that," Amazon told the AFP news agency.
"Autonomous technology has the potential to help make the jobs of our employees and partners safer and more productive, whether it's in a fulfillment centre or on the road, and we're excited about the possibilities," Amazon said.
Aurora is developing the technology for autonomous vehicles, but leaving the making of cars to other companies and said in a blog post it wants to work alongside, rather than compete with, leading automakers.