article_snippet.sent: One of two teenagers feared to have crossed into Syria to join ISIS is believed to be a relative of Hammaad Munshi (pictured), who became Britain's youngest convicted terrorist when he was found guilty of terror offences at the age of 18 in 2008 .
article_snippet.sent: A relative of Britain's youngest convicted terrorist is believed to be among two  teenagers who have fled into Syria to join Isis.
article_snippet.sent: The Times reported that the two 17-year-old boys told relatives that the two 17-year-old boys were going on a school trip, but instead used the Easter holidays as a 'window of opportunity' to flee Britain.
article_snippet.sent: the two 17-year-old boys are thought to have boarded a Thomas Cook flight from Manchester Airport to Dalaman in Turkey on March 31, said West Yorkshire Police.
article_snippet.sent: Both families have reported the two 17-year-old boys missing to police although British authorities now fear that the pair have managed to cross into Syria from Turkey.
article_snippet.sent: Syria is an extremely dangerous place and the public will be aware of the dangers the two 17-year-old boys may face. '
article_snippet.sent: The choice of returning home from Syria is often taken away from those that come under the control of Islamic State, leaving those that come under the control of Islamic State families in the UK devastated and with very few options to secure those that come under the control of Islamic State safe return.'
article_snippet.sent: The disappearance of the two teenagers follows the arrest of nine Britons by Turkish authorities attempting to sneak into Syria across the Turkish border.
article_snippet.sent: Waheed Ahmed, 21, from Rochdale was arrested with Waheed Ahmed aunt, cousins and four children while attempting to get into Syria.
article_snippet.sent: Seeking jihad': Two teenage boys from Dewsbury, West Yorkshire, are believed to have fled to Syria to join Isis militants, seen here taking control of the Yarmouk refugee camp in Damascus .
article_snippet.sent: After the arrest of nine Britons by Turkish authorities attempting to sneak into Syria across the Turkish border, anti-terror police raided the home of his father, Shakil Ahmed, a respected Labour councillor for the town.