Forces loyal to President Bashar al-Assad attacked a market in a rebel-held neighborhood of Aleppo on Monday, killing at least 18 civilians, AFP reported.
The Syrian Observatory for Human Rights said pro-government forces fired several missiles into Aleppo's eastern neighborhood of al-Shaar, which is held by rebels. Dozens of people were also wounded and many more trapped under the rubble.
"A surface-to-surface missile hit the al-Shaar neighborhood," Observatory Director Rami Abdel Rahman said. "People started gathering, and that's when the army fired more missiles at the same area."
Aleppo, Syria's second-largest city, has been torn by conflict and is now divided between opposition in the east and regime forces in the west.