At least 52 Iranian-backed Shi'ite fighters have been killed by Free Syrian Army in the last four weeks in Hama province, activists and local monitoring groups said.
Syrian rebel who launched major attacks on regime forces and allied militias las March have killed and wounded dozens of militants loyal to Bashar al-Assad.
The casualties death toll has also extended to Russia this week.
Two Russian officers and several regime troops killed were when Free Syrian Army hit a military barrack with anti-tank missile in the northern countryside of Hama province.
The missile attack hit Rahbat Khattab, a strategic regime bastion in Hama, as FSA and regime skirmishes mounted in the last few weeks.
Nine more fighters loyal to al-Assad in the southern countryside of Hama province, rebel commander told Zaman al-Wasl.
10 more militants were wounded in the surprise attack on checkpoints near Salamiya town. Rebel said they had seized control of 6 checkpoints and Dallak and al-Mzairaa villages.
On Sunday, the regime army regained the strategic town of Soran near the city of Hama on Sunday with an assault backed by heavy Russian air strikes.
Meanwhile, rebels still hold the strategic town of Morek, north of Hama city. It lies on a major north-south highway crucial to control of western Syria
