A 21-year-old Newcastle woman has been arrested on suspicion of murder by police investigating the death of a baby boy in a fire.
Four-month-old Alexander Gallon died in the fire
Four-month-old Alexander Gallon died in the fire at a house in Cowgate, Newcastle, on Sunday night.
His mother Danielle Wails, 21, told police she was bound with telephone cord by two men who entered the house, attacked her and started the fire.
On Tuesday, another woman in her early 20s was arrested and bailed by police.
On Tuesday, police revealed they were searching for two men in connection with the incident.
On Wednesday, police said that early indications following a post-mortem examination on the baby showed he had died as a result of the fire. Further tests will be carried out.
Police also said they had CCTV footage which showed two men in the area at 2230 BST on Sunday night.
They have appealed for the men to come forward