letterbox

A man in his 40s and a woman in her 30s were inside the property in Princess Avenue when an accelerant was poured through the letterbox on the front door and set alight.

William Newbury, 22, said he was dropping off baby presents to a friend at her boyfriend's house in Llanrumney, Cardiff, on Mother's Day when he saw the "nightmare" attack through their letterbox.

"It turned out to be the mother, I went up to the letterbox and looked through and saw the mum and the baby being attacked by three dogs," he said.

"The door must have been locked or broken as I couldn't get in, but I tried banging on the door and shouting through the letterbox to try and distract the dog."

Previously the company only accepted parcels small enough to fit through a letterbox.