http://www.washingtonpost.com/blogs/the-switch/wp/2017/08/10/uber-founder-travis-kalanick-sued-for-fraud/

Benchmark Capital, one of Uber's most prominent investors, has filed a lawsuit against the ride-hailing company's founder and former chief executive, Travis Kalanick, calling for him to be removed from the company's board and escalating the tension between them.

The suit, first reported by Axios, accuses Kalanick of fraud, breach of contact and breach of fiduciary duty. Benchmark was the firm that originally circulated a draft letter urging Kalanick to step down as chief executive in June. It's also one of Uber's early investors, according to Reuters.