Terrorists of al-Qaeda-affiliated Al-Nusra Front violated the "regime of silence" in Syria's Aleppo by conducting massive artillery strikes, military sources said. "The silence regime, which was introduced on June 19 for 24 hours in Aleppo City, has been broken by Nusra Front massive artillery and mortar attacks on Northwestern, Northeastern, and Southern suburbs of the city," Russia's defense ministry said in a statement, Sputnik reported. The artillery was fired from El Khalid Sheikh Maqsood, Az Zagra, Al-Nayrab airport, and the nearby town of Handarat. The cessation of hostilities was observed in most Syrian provinces, with five recorded violations in Damascus province.The ceasefire was agreed and largely abided by 157 settlements in the region following negotiations. During this time, humanitarian aid, delivered by the Russian military, comprising stores of cereals, flour, and medicine aids have been distributed among the Aleppo province residents.