Rebel militants have reportedly launched missile attacks against the two towns of Fuaa and Kafraya in northwestern Syria.
According to the Syrian Observatory for Human Rights on Monday, the rebels fired around 1,000 rockets, homemade projectiles and mortar shells on the Shia towns in the restive province of Idlib on Sunday night.
The UK-based group provided no exact figures on the casualties, but said there were deaths and injuries.
A coalition of rebel groups, including al-Qaeda affiliate al-Nusra Front, has already taken most of Idlib Province and is trying to capture Fuaa and Kafraya, which are still under control of the Syrian army.
The militants say the attacks on the towns are in retaliation for the growing advances of the Syrian army near the Lebanese border.
The UK-based group also reported that the shelling on the northern Syrian city of Aleppo killed four people, including two children, and injured 20 others.
Fighting inside Syria has been ongoing since early 2011. The conflict has reportedly killed an estimated 240,000 people so far, including nearly 12,000 children.
This article has been modified from the source material.
