Illinois attorney general challenges sentence of ex-Chicago officer

CHICAGO (Reuters) - Illinois Attorney General Kwame Raoul said on Monday he is challenging the sentence of convicted former Chicago police officer Jason Van Dyke, questioning whether the judge who imposed it followed the law.

Van Dyke was sentenced last month to nearly seven years in prison for second-degree murder in the shooting death of black teen Laquan McDonald in 2014 in a landmark case that highlighted racial tensions in America's third-largest city.

Prosecutors had asked for a prison sentence of about 20 years.

(Reporting by Suzannah Gonzales; Editing by Bill Berkrot)