Fatemah Al-Abed's final message to her Twitter followers Sunday was harrowing and heartbreaking.
The Syrian woman's post read: "We are sure the army is capturing us now. We will see each other another day dear world. Bye. — Fatemah."
Shortly after the post, her Twitter account disappeared, NBC News reporters.
Al-Abed's dispatches from inside Eastern Aleppo have shocked and captivated readers around the world since she began tweeting from the account on behalf of her 7-year-old daughter, Bana, in September.
The family has been documenting their struggle to survive, calling on world leaders to stop the violence and rescue Syrian children as recently as Sunday morning.