US police in Pittsburgh have arrested and charged a 26-year-old man with shooting a Muslim cab driver in the back in the early hours of Thanksgiving, officials said Wednesday.

Muslim activists allege the shooting was a hate crime, but police told AFP those charges were still under investigation.

Anthony Mohamed, 26, from Hazelwood, a neighborhood in Pittsburgh, in the state of Pennsylvania, is charged with aggravated assault, criminal attempt homicide and recklessly endangering another person, police said.