从给定的英文新闻文章中提取事实和事件。
以下是一篇英文新闻文章，用于生成事实和事件：

> At least two people have died and several others have been injured in a shooting at a high school in Tennessee. Police responded to reports of an active shooter at Austin-East Magnet High School in Knoxville around midday on Monday. The building has been secured and the shooter, a male student, has been detained. The injured have been taken to a local hospital and are receiving treatment. The motive for the shooting is not yet known.
事实和事件:

- 发生了一起枪击事件，地点为位于田纳西州诺克斯维尔的奥斯汀-东磁高中。
- 至少有两人死亡，一些人受伤。
- 警方在周一中午响应了有关该校发生枪击事件的报告。
- 枪手是一名男学生，已被拘留，建筑物已被安全保障。
- 受伤者被送到当地医院接受治疗。
- 目前还不清楚枪击事件的动机。