06/12/2016 1:46 PM AEDT | Updated 06/12/2016 3:12 PM AEDT

Syrian Girl Bana Alabed 'Found' As Tweets Resume After Ominous Message

The seven-year-old's gripping dispatches suddenly stopped on Sunday.

There has been renewed activity on the seven year old Syrian girl's twitter account
There has been renewed activity on the seven year old Syrian girl's twitter account

A young Syrian girl who captured world attention by tweeting about daily life in war torn Aleppo has resumed posting on her account, days after it mysteriously vanished.

Seven year-old Bana al-Abed disappeared from the social network on Sunday as forces loyal to Syrian President Bashar al-Assad advanced on the rebel held areas of east Aleppo.

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Children walk through smoke and dust after warcrafts belonging to Syrian army carried out airstrikes on the opposition controlled areas in Aleppo's Sukkeri region, Syria on December 4

We are sure the army is capturing us now. We will see each other another day dear world. Bye.- Fatemah #Aleppo, Bana's account on the Sunday before it briefly vanished

But following an ominous tweet on Sunday shortly before they account went offline, Alabed's mother Fatimah tweeted from the account on Tuesday morning (AEST).

The BBC reported a source as saying the pair were in an undisclosed location, however this has not been independently verified.

Harry Potter author JK Rowling used Twitter to call for information on Bana's whereabouts on Sunday.

Bana and Rowling had exchanged tweets in the past, and the popular children author sent the seven year old an ebook collection of the Potter series.

Russia and China on Tuesday vetoed a United Nations Security Council resolution calling for a ceasefire in Aleppo, marking Russia's sixth such veto since 2011 (CNN reports China joined in on the fifth veto).

Last week the UN's Humanitarian Affairs chief warned the city risked becoming "one giant graveyard" as he pleaded with UN Security Council members to protect civilians "for the sake of humanity".

In April the UN estimated the Syrian civil war had left an estimated 400,000 dead since 2011.