What do you want to know about Aleppo?
We asked you to send in your questions about Aleppo for Chief International Correspondent Lyse Doucet to look into.
We picked out four of your questions and you selected "Why is Russia helping the Assad regime?" as the question you'd like Lyse to answer.
Where will I see Lyse's answer?
The answer will be published on the BBC News website and will appear on this page and the world section of the site.
Why are we doing this?
We want to write stories which matter to you.
You can send us your questions about whatever interests you and BBC News will try to answer them.
Take a look at some of the other questions you've wanted us to answer and find out how you can get involved in our coverage.