In Hama province, citizen journalist Hassan al-Aarg said government shelling in the village of Kafr Zeta killed two toddler boys.

Their mother had laid them down on a blanket when a rocket strike by a government warplane targeted their home, said al-Aarg, who filmed the aftermath.

"I must find them!" their father wailed as he picked through the rubble to collect bits of flesh to place inside a clear plastic bag.

"Oh, God, do you not see?" their mother asked. "Do you not see?"

The twins died about six miles from where more than 100 people standing on line outside a bakery were killed when it was attacked Sunday by warplanes.

CNN cannot confirm the authenticity of the reports because of the restrictions on journalists. The deaths occurred several miles from the bread line pounded by warplanes Sunday.

More than 40,000 people -- mostly civilians -- have been killed in the Syrian crisis since March 2011, according to tallies by opposition activists.