The family of an 11-year-old boy who died while racing friends as he rode an Ofo bike in Shanghai have included the bike-sharing company in a lawsuit against those involved in the crash.

The boy, who has not been identified, collided head-on with a tourist bus as he rode on the wrong side of the road in the city's central Tiantong Road on March 26. He died at a hospital shortly after the crash.

His parents originally filed their lawsuit against the bus driver and Shanghai Hongmao Auto Rental, which owns the vehicle. By adding Ofo to the list of plaintiffs, the suit has become the first litigation in China against a bike-sharing company over an accident.