为何这句话没谓语动词 Frozen water pipes bursting destroying homes, some causing ceilings to collapse

为何这句话没谓语动词，需不需要在什么地方加个are？

Frozen water pipes bursting destroying homes, some causing ceilings to collapse.

是不是应该加个逗号？

Frozen water pipes bursting, destroying homes, some causing ceilings to collapse.

这句话正确的句子应该是哪种？谢谢

前文呢？我感觉是省略了前文相同的成分。