A quick-thinking driver halted and honked to alert as a baby stroller rolled towards a busy road in southern China.

The terrifying CCTV footage was filmed in Chengdu City in Sichuan Province on June 18.

A grandmother was holding a baby stroller while the child's mother stood nearby, adjusting her clothes. Suddenly, the grandmother's eldest granddaughter dashed out from inside the house, running farther away by the second. Concerned about the child's safety, the grandmother quickly turned to chase after her granddaughter.

Assuming her daughter-in-law would notice the movement of the baby stroller once she left, the grandmother hurriedly pursued her granddaughter. However, the mother was preoccupied with her own tasks and failed to realize the grandmother had left her side.

Due to the slight slope at the doorstep, the unattended baby buggy rolled uncontrollably towards the road under the influence of gravity.

Fortunately, there were few vehicles on the road at the time, and the baby buggy came to a safe stop in the middle of the road. A white SUV passing by immediately honked its horn to alert others of the situation.

It was only then that the mother at the doorstep turned around and noticed the unfolding drama. She sprinted frantically to retrieve the child from the stroller.

6月18日，四川成都，监控记录下令人揪心一幕。 画面中这名奶奶正手握婴儿车，站在孩子妈妈一旁看她整理衣服。然而就在这时，屋里的大孙女突然跑了出来。眼看大孙女越跑越远，担心孩子发生意外的奶奶紧忙转身去追孙女去了。奶奶以为自己走后儿媳会注意到婴儿车的动向，但此时的儿媳光顾着整理手中的衣物了，并没有意识到旁边的奶奶已经走了。 就在这时意外发生了。由于家门口的地面存在一定坡度，无人看管的小推车直接就在重力的影响下冲向了马路。幸运的是，马路上的过路车辆并不是很多，婴儿车最终安全的停在了马路中间。 路上行驶的一辆白色SUV见此情况，急忙长按喇叭以示提醒。直到此时，家门口的母亲这才回过头发现了异常，赶紧一路狂奔去拉回了婴儿车里的孩子，好在只是虚惊一场。