Cash App founder Bob Lee stabbed to death in San Francisco, says father

Block Inc SQ.N-owned Cash App's founder Bob Lee was stabbed to death in San Francisco on Tuesday, according to a Facebook post shared by his father.

"I just lost my best friend, my son Bob Lee when he lost his life on the street in San Francisco early Tuesday morning," said Rick Lee in a post which linked a TechCrunch article on the stabbing.

The San Francisco Police Department said late on Tuesday that a 43-year-old man was stabbed early in the day and succumbed to injuries in the hospital. The department's statement, which did not name the victim, said the incident was being investigated and no arrests had been made.

Cash App allows users to transfer money through a mobile application and is touted by the company as an alternative to traditional banking services.

Block was not immediately available for comment.

Lee was the chief product officer for cryptocurrency company MobileCoin, where he was also previously an early-stage investor and adviser, the company said on Twitter.

"He was a force of nature"

"Bob was a dynamo, a force of nature. Bob was the genuine article. He was made for the world that is being born right now, he was a child of dreams, and whatever he imagined, no matter how crazy, he made real," MobileCoin CEO Joshua Goldbard wrote on Twitter.

Cash App parent Block was recently in the news after short-seller Hindenburg said in a report that the payments firm overstated its user numbers and understated its customer acquisition costs.