A woman and another child escaped the blaze
Two boys believed to be aged two and three have died in a house fire in Huddersfield in England.
A woman and another child escaped the blaze in Alder Street, Fartown, before emergency services arrived shortly after 2pm on Saturday.
Told that two children were still inside, firefighters wearing breathing apparatus went into the property and brought out both youngsters.
They were taken to hospital where they were pronounced dead.
An investigation is under way into the cause of the blaze, but is not currently thought to be suspicious.
The fire service has said the house did not have a working smoke alarm, according to reports.
Chris Kirby, group manager at West Yorkshire Fire and Rescue Service, told Sky News was "an absolutely tragic incident" which had left emergency crews distraught.
He said: "They had tears in her eyes and were very upset about the the scenes they had witnessed."
He added: "We believe the fire started in an upstairs bedroom...as many people know, fire can spread very quickly and within a matter of minutes you can have a significant fire in a house property.
"We are in the area this afternoon offering safety checks for free to members of the community to increase their awareness on how to stop this sort of incident occurring."
Labour councillor Amanda Pinnock, who was leafleting in the area on Saturday, said the community would be in shock.
She said: "It's a tragedy. It's a very close-knit area in Fartown.
"Because of the area, everybody knows everybody.
"They will be shocked by what has happened."