The White House said Monday that the regime of Syrian President Bashar al-Assad was "culpable" in last week's chemical weapons attack that the opposition said left up to 1,300 dead in a Damascus suburb, dpa reported. White House spokesman Jay Carney said it was "undeniable" that chemical weapons were used on a widespread basis against innocent civilians with tragic results. "There is very little doubt in our minds that the Syrian regime is culpable," Carney said. He went on to say that there is very little doubt that the Assad regime used the weapons "because they have maintained control of the stockpile of chemical weapons in Syria. They alone have the capacity to use rockets to deliver chemical weapons."