The first airstrikes have been launched against ISIS in the Syrian city of Aleppo, since a truce came into effect under a US-Russia deal.
Last week, US and Russia brokered a deal for cessation of hostilities in Syria.
Under the terms of the cessation agreement, Syrian President Bashar al-Assad's air force must not carry out combat missions anywhere where the opposition is present.
The US and Russia agreed to work together to develop military strikes against Nusrah, which is al-Qaida’s affiliate in Syria.
The truce, however, failed as warplanes fired missiles in the neighbourhoods of al-Mowasalat, Karm al-Jabal, Karm al-Biek, al-Sakhur and Sheikh Khader in Aleppo city, killing and injuring civilians.
The Syrian Observatory for Human Rights (SOHR) documented new violations within the ceasefire areas, after the truce agreement ended on its sixth day.
Nine people including two children were killed when the helicopters dropped barrel bombs on areas in the town of Dael in the countryside of Daraa, and a citizen woman was killed when the warplanes launched a missile.
The US-led coalition confirmed that a mistaken airstrike killed at least 62 Syrian soldiers fighting ISIS.
US Central Command was quoted by media sources as saying: “Syria is a complex situation with various military forces and militias in close proximity, but coalition forces would not intentionally strike a known Syrian military unit.
“The coalition will review this strike and the circumstances surrounding it to see if any lessons can be learned.”
Image: Warplanes fired missiles in Aleppo city. Photo: courtesy of the Syrian Observatory for Human Rights.