22 May 2016. A military source told SANA that units of the army and the armed forces broke the siege imposed on al-Zara power plant in a special operation, forcing the terrorist groups which are affiliated to Al-Nusra Front and Ahrar al-Sham Islamic Movement to withdraw to Harbanafseh town in the southern countryside.

AL MANAR

http://english.almanar.com.lb/adetails.php

At industryabout.com:

Al Zara Oil Power Plant

Syria - Industrial Map