Mostafa Al-Qati, commander of Katibeh Jund Al-Sham terrorist group, was killed along with a number of militants of the Islamic State of Iraq and the Levant (ISIL) near Deir Ezzur military airport.
Notorious ISIL militants, including Abu Eshaq Al-Tunisi and Ebrahim Al-Tunisi, were among the terrorists killed in Deir Ezzur.
The Syrian army also destroyed the gathering centers of armed rebels in Deir Ezzur.
Syria has been experiencing unrest since March 2011 with organized attacks by well-armed terrorists and militants against the Syrian army and civilians across the country.
Thousands of people have been killed since terrorist and armed groups turned protest rallies into armed clashes.
The government blames outlaws, saboteurs, and armed terrorist groups for the deaths, stressing that the unrest is being orchestrated from abroad.
In October 2011, calm was almost restored in most parts of the Arab state after President Assad started a reform initiative in the country, but Israel, the US and its Arab allies brought the country into chaos through every possible means. Tel Aviv, Washington and some Arab capitals have been staging various plots in the hope of increasing unrests in Syria.
The US daily, Washington Post, reported in May, 2012 that the Syrian rebels and terrorist groups battling Assad's government have received significantly more and better weapons in recent weeks, a crime paid for by the Persian Gulf Arab states and coordinated by the United States.
The newspaper, quoting opposition activists and US and foreign officials, reported that Obama administration officials emphasized the administration has expanded contacts with opposition military forces to provide the Persian Gulf nations with assessments of rebel credibility and command-and-control infrastructure.
According to the report, material was being stockpiled in Damascus, in Idlib near the Turkish border and in Zabadani on the Lebanese border.
Opposition activists who several months ago said the rebels were running out of ammunition said in May that the flow of weapons - most bought on the black market in neighboring countries or from elements of the Syrian military in the past - has significantly increased after a decision by Saudi Arabia, Qatar and other Persian Gulf states to provide millions of dollars in funding each month.