Road closures were put in place at the Chrisp Street and Newby Place junctions (credit: Google Maps)
Police were called to the residential property in East India Dock Road yesterday evening at 6.45pm.
The injured boy has been transferred to a specialist hospital.
He is in a critical but stable condition.
Road closures were put in place at the Chrisp Street and Newby Place junctions.
Any witnesses or those with dash cam footage should call police ref CAD 6419/27 July.
For more on this story, and the latest on our other local and national news, listen to Time 107.5FM