Credit: CBSDFW.com

Credit: CBSDFW.com

ARLINGTON (CBSDFW.COM) — Rankin Elementary School in Arlington was placed on lockdown Wednesday as authorities investigated a suspicious device found outside of the school.

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After an investigation by the Arlington Fire Department, the device was determined to be a car battery charger.

The district originally placed the following message on their website around 9: 40 a.m.

The Arlington fire department is investigating a suspicious device outside Rankin ES. Students are being held inside until further info is available. Parents are asked to wait at St Matthew’s Catholic church.

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The investigation appeared to center around a trash dumpster located in the parking lot of the school. Police are helping coordinate traffic in the area and are working closely with investigators.

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