The inferno at Grenfell Tower began at around 1:30am, quickly escalating into an uncontrollable fire with tenants - including a lot of families with children - stuck inside.
Rania Ibrham posted a Snapchat video at 2:54am, where she can be seen praying in Arabic.
Her heartbroken best friend showed the clip to Good Morning Britain, saying: "You can see she’s trapped."
"She’s praying and she’s saying, 'Forgive me everyone, goodbye'."
Rania has two young girls aged five and three who were in the building with her when it went up in flames.
She posted a nine-minute Facebook live video at 1:38am, around the time the blaze started.
In the clip, Rania is seen opening the door to her apartment and yelling for people stuck in the hallway to join her inside.
She can also be heard praying on the balcony.
"We are stuck on the 23rd floor," another distraught woman yells out during the video.
"There’s too many people stuck upstairs. Hello!" she yells desperately.
Friends have commented below the video, helplessly hoping to hear something from Rania, however, she hasn't been heard from since.
So far, 12 people have been confirmed dead from the fire and 74 are being treated in hospital. The number is expected to rise as emergency crews tend to the building.
This article originally appeared on marie claire