Justin Bierber's grandparents were injured in a major car accident .
Patti Mallette , Bieber's mom revealed on twitter that her parents Diane and Bruce Dale were driving when :they flipped into a ditch and totaled the car."
Bruce suffered broken ribs , " but thank God they are alive ," she wrote.
Still Mallette asked for fans to "Plz pray 4 him 4 quick healing ."
"Count your blessing and forgive ur parents always," she added. "U never know what tomorrow holds !!!
Bieber's grandparents who helped raise him were seen affectionately discussing his childhood in Justin Bieber : Never Say Never , which was released in theaters earlier this year.