India, Nov. 1 -- A 78-year-old retired college professor in the US city of Philadelphia was arrested after allegedly refusing to let a self-driving delivery robot pass.

According to a report by CNN, the incident took place earlier this month. Carolyn Marvin, a retired communications professor at the University of Pennsylvania, was returning home after getting a flu shot when she encountered an Uber Eats delivery robot and stood in its path. She stood at the spot until a crowd gathered and police were called.

Officers responded to the scene after receiving a report of criminal mischief involving a robot, a Philadelphia Police Department spokesperson told The Independent.

Marvin allegedly refused repeated instructions from officers to mo...