In Syria, convoys carrying humanitarian aid to the besieged Aleppo city have been held up, as fighting between Government forces and rebels outside Damascus raised concerns about whether a fragile ceasefire could hold. The United Nation says it has not received permits from the Syrian Government to allow the trucks into opposition areas. About 20 trucks have been waiting for safe passage to cross from Turkey into Syria and on to rebel-held east Aleppo since Monday.<br/><br/>Meanwhile, both the Government and rebels accusing each other of breaching the US-Russia brokered agreement. US and Russia had agreed last week to set up a committee that would enable joint targeting of the Islamic State of Iraq and the Levant (ISIS) and Jabhat Fateh al-Sham groups in Syria if a ceasefire held for seven days and unfettered humanitarian aid was allowed to flow into the country.