Three teenage girls have been arrested following an investigation in multiple structure fires earlier this month.

The Orange Police Department announced early Monday it had placed three teenage girls into custody following its investigation into a string of structure fires involving vacant houses in the east side-area of Orange between Monday, June 29 through Sunday, July 5.

According to a press released issued Monday morning by the Orange Police Department, two of the girls, ages 12 and 14, were arrested on Wednesday, July 8, while a third female, age 13, was taken into custody on Thursday, July 9. A fourth potential individual is also being investigated with the incidents.

At approximately 12:30 a.m., Monday, June 29, a structure fire was reported at 902 Sholars. The garage at the residence was destroyed by fire. The house at the same address was reported on fire shortly after 10 p.m., Sunday, July 5 and destroyed.

A house at 612 Cypress Avenue in Orange was reported on fire at approximately 4:45 p.m., Saturday, July 4. The fourth structure, was located at 1207 Park Ave. in Orange. It was reported on fire shortly before 10:30 p.m., Sunday, July 5.

Arson was suspected in all four instances, and, as Chief David Frenzel of the Orange Fire Department said in a previous interview with The Orange Leader, “the fires are very suspicious.”

The names of the individuals arrested have not been released because of their ages. Charges of arson, which is a second degree felony, are expected to filed with the Orange County Juvenile Probation Department and the Orange County District Attorney’s Office.