An Arizona judge has ordered the release of a 19-year-old man who was detained and questioned in a series of freeway shootings in Phoenix.

A judge Friday granted prosecutors' request to dismiss a petition to revoke the Avondale man's probation term.

The state Department of Public Safety detained him Sept. 11 at a convenience store.

The Associated Press is not naming the man because he was not arrested in the freeway shootings.

Authorities have declined to explain why the man was questioned about the shootings but have said he was not a prime suspect.

Maricopa County Attorney's Office spokesman Jerry Cobb said prosecutors had to drop the petition because the DPS did not submit a report explaining why the man's probation should be revoked.

The man was sentenced to probation on an endangerment conviction for excessive speeding and fleeing from police.