WATCH: Marco Muzzo DENIED parole

A drunk driver who killed three young children and their grandfather in a crash north of Toronto three years ago has been denied parole.

A panel with the Parole Board of Canada says Marco Muzzo has not addressed his alcohol misuse and denied him both day parole and full parole.

Muzzo was sentenced to 10 years in prison in 2016 after pleading guilty to four counts of impaired driving causing death and two counts of impaired driving causing bodily harm.

The September 2015 crash claimed the lives of nine-year-old Daniel Neville-Lake, his five-year-old brother Harrison, their two-year-old sister Milly and the children's 65-year-old grandfather, Gary Neville.

The children's grandmother and great-grandmother were also seriously injured in the collision in Vaughan.