Ruling?

[Scotto]

R1 on second - 1 out. Fast runner and good bunter at bat. Third baseman is playing in front of the bag by 5-10 feet. R1 decides to steal as batter hits shot past third baseman. Ball hits R1 as he is running to third. No other infielder would have made play. Ball then goes into dead ball territory. I understand base runner is safe, but where do you put the runners after ball has become dead?

Thanks