One of the crew reached over the cot and cradled the child, protecting him from the extreme temperatures on the landing while making his way back down the stairs.
Estynnodd un o’r criw dros y cot a magu’r plentyn, gan ei amddiffyn rhag y tymheredd eithafol ar y landin wrth iddo wneud ei ffordd yn ôl i lawr y grisiau.