"The families have identified a number of the killed, stressing that Jabhat al-Nusra abducted them because of their rejection to cooperate with this terrorist group," SANA reported, citing a media source.
"The bodies, which terrorists and TV misleading channels have claimed that the army killed their owners, were found in the side where terrorists present," SANA quoted one of its reporters as saying.
It was the latest report of mass killings in the Syrian civil war, a battle between al-Assad's government and insurgents.
In all Tuesday, 228 Syrians were killed Tuesday, according to the opposition Local Coordination Committees of Syria.
The Syrian unrest started nearly two years ago when the government cracked down on civilians peacefully protesting government policies. The conflict morphed into a civil war. Since then, it has claimed more than 60,000 lives, according to the United Nations.
"The regime adds another massacre to its record while the entire Arab world and the international community keep watching the Syrian misery in silence and complete hypocrisy," the opposition Syrian Observatory for Human Rights said.
In the opposition video, men can be heard shouting, "This is unbelievable!" and "Some were children, children for God's sake!"
One man can be heard saying, "Tell the world these were not soldiers. They were not fighters. They are human beings. How come they know what the law of gravity is but they don't know anything about human rights."
Opposition groups have regularly reported massacres by government forces and their allies. Some of the more notorious reports include incidents in Taftanaz, Houla, Homs, Hama, Tremseh, Daraya, and Halfaya. Bombings in Aleppo and Damascus have resulted in many deaths.
The international aid group Doctors Without Borders, also known as Medecins Sans Frontieres, called Tuesday for international donors to support humanitarian operations in opposition-held areas in Syria.
The group said in a statement issued ahead of a donors conference in Kuwait City that areas under government control receive nearly all international aid.
"The current aid system is unable to address the worsening living conditions facing people inside Syria," said Dr. Marie-Pierre Allie, president of MSF. "The participants in the Kuwait City conference must acknowledge the legitimacy of cross-border humanitarian operations intended for Syria and grant them the financial, administrative and logistical support they require."
The number of refugees registered with the United Nations jumped by 110,000 in January, bringing the total to more than half a million.
If the refugees awaiting registration are included, the number exceeds 700,000, the United Nations High Commissioner for Refugees said.
"It's an unrelenting flow," UNHCR spokeswoman Sybella Wilkes said in Geneva.
When Syrians flee to neighboring countries, they arrive in need, Wilkes said.
"The last thing that Syrians wanted to do was leave their country," she said, adding that it's not unusual for families to be displaced internally six times before finally deciding to leave their home country.
They often require with health conditions that have gone untreated and require urgent attention, Wilkes said.
Recently, one woman lost a child at a U.N. station shortly after delivery because she had not received basic prenatal care, Wilkes said.