An Arizona couple accused of leaving their 2-year-old son alone for up to 90 minutes to go play the "Pokemon Go" smartphone game have been indicted by a grand jury.

Pinal County prosecutors say 27-year-old Brent Daley and his 26-year-old wife Brianna Daley each are facing one count of child abuse.

They were arrested after a neighbor found the boy crying outside the couple's home in the southeastern Phoenix suburb of San Tan Valley on July 29.

Authorities say the child was barefoot and wearing a diaper and a T-shirt.

Sheriff's officials say the Daleys initially told deputies they went to buy gas, but then they said they had gone in search of virtual Pokemon creatures in their neighborhood.

The state Department of Child Services took custody of the child.