A Bradford family have appealed for help to trace three British sisters who are feared to have travelled to Syria with their children.
Khadija Dawood, 30; Sugra Dawood, 34 and Zohra Dawood, 33, and their nine children, aged between three and 15, travelled to Saudia Arabia on May 28 for an Islamic pilgrimage.
The children have been named as Ismaeel Iqbal, 3; Muhammad Haseeb, Mariya Iqbal and Nurah Zubair, all aged 5, Maryam Siddiqui, 7; Zaynab Iqbal and Haafiayah Zubair, both aged 8; Ibrahim Iqbal, 14 and Junaid Ahmed Iqbal, 15.
The family, from Bradford, failed to return to the UK on June 11, according to solicitors acting for the Dawood family.
It's believed ten members of the group boarded a flight from Madina, Saudia Arabia to Istanbul on June 9.
No details were found for two of the children - Haafiyah Zubair and Nurah Zubair - having boarded the flight.
West Yorkshire Police are investigating the matter and have contacted the Turkish Authorities. However at this stage no progress has been made with any sightings or contact in Turkey.
The family of the missing persons are extremely worried and feel helpless.
They bring this matter to the attention of the press to highlight their concerns and would appreciate any reporting and media assistance in their search of the missing persons.
Speaking from Pakistan, one of the husbands of the missing Bradford thought to be heading to Syria has told ITV News of his worry.
Here's what we know about the Bradford family of 12 who are feared to be travelling to Syria.