the families of two teenage boys who are thought to have traveled to syria are ` in a state of profound shock ' and deeply worried about the safety of their ` ordinary yorkshire lads ' .
the boys who have been named as 17-year-olds hassan munshi and talha asmal are believed to have traveled to the embattled country after heading to turkey on march 31 .
hassan is supposedly related to hammaad munshi , who was arrested by counter-terrorism police at the age of 15 back in 2006 .
he was later convicted over his role in a brutal plan to murder non-muslims .