A woman violently beat up a boy as a swing played by him hit her head in northern China.

The shocking CCTV footage was filmed in Langfang City in Hebei Province on May 20.

A boy found the swing rope wrapped around the upper bar and threw it in reverse to try to untie the rope. Unexpectedly, the swing happened to hit a nearby woman's head.

The boy's unintentional behaviour immediately angered the woman. She then came forward to grab the boy and repeatedly hit and kick him.

Horrified by the violence, the boy walked home crying and told his parents, who then called the police.

The woman has been detained by the local police and the cause is in further investigation.

The video was provided by local media with permission.

5月20日，河北廊坊市，一名女子的头部因被男童抛起的秋千碰到，竟然接连暴击男童，对其拳打脚踢，其间离开后不解气，还返回后继续殴打该男童。
据了解，该起事件发生在廊坊市文安县政通8号小区的儿童游乐区内。监控视频显示，5月20日上午11时30分许，一名男童看到秋千绳子缠绕在上方横杠后，用力将秋千反向抛起，试图将缠绕的绳子解开。不料被抛起的秋千绕过上方横杠后，恰巧砸在一名女子头部。
男童这一非故意的行为，瞬间将该女子激怒。只见其将抱着的孩子放在地上后，上前揪住男童就是一顿暴击，频频抡起巴掌击打男童的头部。打出9掌1脚后，该女子抱起自己孩子，但仍感觉不解气，又转身对男童打出3掌1脚。在抱着孩子走出数米远后，女子还是不解气，又返回秋千处再对男童猛打两掌。
男童一时也被女子的暴力举动吓坏，哭着走回家告诉了父母，男孩家长随后报了警。
当地警方随即展开调查。目前，涉嫌殴打他人的违法嫌疑人已到案，并被当地公安部门依法拘留，事情正在进一步处理中。