At 8:28 pm on July 2, in Dongxiao Township, Jinhua City, Zhejiang Province, a freight train on the Hukun Line failed to stop in time at Dongxiao Station and entered the down line, where it collided sideways with the locomotive of passenger train K1373, which was passing through. The accident caused the front car of the K1373 locomotive to derail. No casualties have been reported.

As a result of the accident, train K1373 was delayed for nearly 3 hours. During this time, the train’s air conditioning stopped functioning, and the temperature inside the carriages rose rapidly. According to passengers, the temperature inside reached between 33°C and 38°C, and poor air circulation made the environment unbearably stuffy.

Several passengers experienced physical discomfort due to the heat. Elderly passengers had to be assisted by railway police, and children cried incessantly from the high temperatures. Many passengers requested to open the doors for ventilation but were refused by staff, who cited “safety regulations” as the reason.

After two failed attempts to negotiate with staff, one passenger, unable to endure the heat, used a safety hammer to smash a train window for ventilation. Video footage shows a passenger in black repeatedly striking a window with a safety hammer. Once the window was broken, air circulation in the carriage improved.

At 11:27 pm on July 2, after emergency handling by railway authorities, train K1373 resumed service with a replacement locomotive. Following resumption, authorities organised passenger transfers, some disembarked at Jinhua Station, and the train's final destination was changed to Changsha Station.

The passenger who broke the window was taken away by police upon arrival at Jinhua Station. However, according to staff from the Huaihua Railway Public Security Office of the Guangzhou Railway Public Security Bureau, the male passenger was not detained and was released after receiving a warning and education.

7月2日20时28分，浙江金华市东孝乡境内，一列货物列车在沪昆线东孝站停车不及，侵入下行正线，与正在通过的K1373次旅客列车机车发生侧面冲突，事故导致K1373次机车前台车脱线，无人员伤亡通报。

K1373次列车因此事故滞留近3小时，期间列车空调停止运行，车厢内温度迅速上升。据乘客描述，车厢内气温高达33度至38度，空气不流通，导致乘客感到闷热难耐。

多名乘客因闷热出现身体不适，有老人被乘警扶走，小孩因无法忍受高温而哭闹不止。多名乘客反映要求开车门透气遭拒，工作人员以“需遵守安全规定“拒绝。

因和工作人员两次沟通无果，有乘客因无法忍受高温和闷热，使用安全锤砸破车窗玻璃通风。视频显示，一名黑衣乘客手持安全锤连续击打列车车窗，车窗玻璃被砸开后，车厢内空气流通情况有所改善。

7月2日23时27分，经铁路部门紧急处置，滞留在沪昆线东孝站的K1373次旅客列车换挂机车后恢复运行。列车恢复运行后，铁路部门做好旅客转运工作，部分乘客在金华站下车，列车终点站也因故变更为长沙站。

砸窗乘客在车辆抵达金华站后被警方带走，但据广州铁路公安局怀化铁路公安处工作人员表示，并没有对砸窗的男乘客进行拘留，仅对其批评教育后放行。

列车因事故滞留近3小时 乘客砸破车窗通风