'My children are beautiful': Syrian father whose wife and twin babies were killed in 'Assad gas attack' weeps over his family's graves in heart-breaking footage (Photos/Video)

 Possessed by grief, Abdul Hamid al-Yousef weeps uncontrollably over the graves of his dead wife and nine-month-old twin children.

Said, 'My children. My children. They were beautiful,' the widower screams in distressing footage of his visit to the makeshift burial site where his partner Dalal and children, Ahmed and Aya, were laid to rest.
Abdul's friends have to hoist him to his feet and wipe his nose as he sobs over the dusty patch of land in the besieged town of Khan Sheikhoun, in the rebel-held Idlib province.

His young family was torn apart by a suspected sarin chemical gas attack and subsequent bombing raids on the rural village, blamed on Syrian President Bashar al-Assad, which killed more than 80 people including at least 30 children.

Heartbreaking images and video showed him cradling his babies in the crook of his arm, stroking their heads as he whispered: 'Say goodbye, baby. Say goodbye.'

Abdul has now revealed in explicit detail how his relatives' homes were flattened by a series of suspected Syrian airstrikes - and the agonising moment he discovered his wife and children had died from chemical poisoning.