Is this interference? Thanks.

[jamesshank]

ASA fastpitch...3-1 count, runner on second...next pitch in the dirt for ball 4 (caroms off the catcher rolls back toward the mound)...BR tosses the bat and quickly heads to first, R2 sees the pitch in the dirt and takes off for 3rd...the BR is hit by the ball as she runs to first that causes the catcher another split second to recover the ball and her throw to 3rd is late, runner is safe. Is this offensive interference, should the BR be out and the runner returned to 2nd? Thanks for your input