Three Indianapolis-area high school students have been arrested in the last week on suspicion of bringing or attempting to bring guns to school.

Two students were arrested Tuesday: a Ben Davis High School student and a North Central High School student. A Lawrence Central High School student was arrested Aug. 15.

Ben Davis High School administrators who responded Tuesday to reports of smoking in a school bathrooms found an unloaded handgun in a student's backpack, according to Jeff Butts, superintendent of the Metropolitan School District of Wayne Township. The student was subsequently arrested.

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A North Central High School administrator searched a student who was not where the student was supposed to be, the Metropolitan School District of Washington Township said Tuesday. A handgun was then found in the student's backpack, and the student was taken into custody, the district said.

And a 16-year-old Lawrence Central student was arrested Aug. 15 after a handgun was found uncovered in his backpack. The student was searched after he arrived late, and was acting "erratic" and "suggestive of being under the influence," Lawrence Central principal Franklyn Bush said in an email to parents.

The Lawrence Central student was taken to the Marion County juvenile detention center, Lawrence police told IndyStar.

Andrew Clark is a reporter for IndyStar. Call him at 317-444-6484 or email him at andrew.clark@indystar.com. Follow him on Twitter @Clarky_Tweets.