4.01pm GMT

Here's a summary of today's events:

Syria

• The UN is investigating claims that Turkey breached international asylum laws by deporting hundreds of refugees involved in Wednesday’s riot at a camp on the Syrian border. "We are very concerned that there are allegations of possible deportations from the camp in the past day," a UNHCR spokeswoman said. A Turkish official denied the claims.

• Twelve Syrian students were killed when rebel mortar bombs landed on the canteen of Damascus University's College of Architecture, according to pro-government TV channels. The incidents appeared to be the latest in a series of indiscriminate mortar attacks by rebels against the Syrian capital.

• The humanitarian crisis in Aleppo is worse than previously feared, according to a detailed opposition assessment, funded by the US, UK and EU. Based on visits to almost half of the city by 15 researchers, the study estimated that more than 2.4 million people in the city are in urgent need of assistance, and that 510,000 have forced from their homes.

• The UN's security council has expressed "grave concern" that the Syrian conflict is spilling into the demilitarised area of the Golan Heights. In a statement, it also urged both sides in the conflict to respect the freedom of movement of UN peacekeepers in the areas. Israel has built a field hospital in the Golan Heights to treat wounded Syrians coming across the border, AFP reports.

• Syrian opposition leader Moaz al-Khatib has voiced his frustration at the failure of the international community to do more to help topple the regime of Bashar al-Assad, Reuters reports. Speaking at the opening of the opposition's "embassy" in Qatar, he said: "There is an international willingness for the revolution not to triumph." Both the US and Nato have rejected Khatib's request for Patriot missile protection for rebel-held areas in northern Syria.

• Assad's appeal to Brics nations to help tackle the crisis in his country has been dismissed as a sign of desperation by the US. Commenting on the appeal to the bloc made up of Brazil, Russia, India, China and South Africa, a state department spokesman said: "What this highlights is the overwhelming isolation of the Assad regime. You see them sort of flailing for any last shred of support they can garner, which is very limited."

• Foreign governments are failing to deliver the money they promised for homeless Syrians fleeing the civil war, and this, rather than lack of access, is the main reason for the massive shortage of aid, according to the main volunteer agency in the country. "We can reach people in 90% of Syrian territory but we need help financially. There are 4 million internally displaced but we're only able to cover the needs of half of them," Khaled Erksoussi, head of operations at the Syrian Arab Red Crescent, told the Guardian.

Egypt

• The family of ousted Egyptian dictator Hosni Mubarak still owns assets on British territory nearly two years after British authorities called for them to be frozen, Egypt's largest investment bank has disclosed. EFG Hermes, the fund's co-owners, has admitted that "to the best of [their] knowledge" Mubarak's son Gamal has a 17.5% stake in a fund registered in the British Virgin Islands (BVI). It is 20 months since the territory's authorities issued an order calling for the freezing of Gamal Mubarak's assets.