Breaking News Emails

Get breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings.
 / Updated 
By Alexander Smith

A Syrian first responder hailed as a hero after rescuing a 10-day-old baby from a bombed out house has himself been killed in an airstrike, his organization said Friday.

Khaled Omar was a 31-year-old volunteer with the country's Syrian Civil Defence volunteer group. He died in an airstrike on a rebel-held area of Aleppo on Thursday, group spokesman Abed Abdulrahman told NBC News by telephone.

An undated photo of Khaled Omar.Syria Civil Defence

The group, which is also known as the White Helmets, said on Twitter that Omar "died a hero" and "saved countless lives" during his time as a volunteer.

In Oct. 2014, he and his fellow first responders dug for more than 12 hours looking for a two-week-old baby whose mother said was missing following an airstrike. Just as they were about to give up, they heard the baby crying, and Omar was filmed pulling the infant from the rubble.

The video was shared widely online and became known as the rescue of the "miracle baby."

Aleppo was Syria's largest city before the complex and brutal civil war broke out in 2011. For much of the conflict it has been divided between rebel and government-held areas.