Criminal Investigation into Edinburgh Deaths

A modern block in the southwest of the city is under criminal investigation following a suspected gas explosion. Three children and an adult, believed to be their mother, were involved. The children died, and the mother is in serious condition. Neighbors reported an explosion and gas smell, but the gas company found no issues. The fire brigade confirmed a small fire. Police are not seeking other suspects and are unsure if an explosion occurred. The investigation is ongoing, with evidence being collected from the scene.

What is the current status of the investigation into the incident?

What did neighbors report hearing and smelling before the incident?

What condition is the woman who managed to escape from the incident?

What actions have the scene of crime officers taken at the townhouse?

What did the police say about the cause of death of the three children?