Sesame Street has left viewers divided after boldly addressing the issue of addiction with its newest character, Muppet Karli.

Karli is a six-year-old who lives with foster parents because her mother is dealing with substance addiction.

Sesame Street is addressing the sensitive issue of addiction with its newest Muppet, Karli.

The iconic show introduced the character as part of its online resource to help disadvantaged children navigate difficult life circumstances.

Nearly six million children under 11 live with a parent who has a drug addiction in America.