United Nations humanitarian chief Baroness Amos has told ITV News that she is increasingly concerned for the people of Aleppo and fears that it may be a repeat of what happened in the Syrian city of Homs.
There have been new reports today of helicopter gunship attacks as the army pushed on with its offensive to retake the city. ITV News Correspondent Neil Connery's report contains flashing images from the start.
Baroness Amos said that the situation in Aleppo is "very similar" to Homs, with thousands of refugees fleeing into neighbouring countries.
Today, Foreign Office minister Alistair Burt warned the worsening civil war would attract jihadists to the country to fill the void created by fierce battles between Assad's forces and rebels. Mr Burt said:
Mr Burt told BBC Radio 4's World At One the battle for Syria's second city, Aleppo, showed why a United Nations Security Council resolution increasing the pressure on Assad should have been agreed earlier this month.