A couple and their five children have gone missing in Turkey.
They are Imran Ameen, 39 and his wife Farzana Ameen, 40.
The couple has disappeared with their children Isma Imran, age 15, Moeen Imran, age 14, Mohammed Muneeb Imran, age 11, Ismail Imran, age eight, and Mohammed Imran, age five, were reported missing by relatives in the UK yesterday.
The Bradford family flew from Manchester to Antayla, Turkey, on Tuesday October 6 and have not thought to have booked return flights.
West Yorkshire Police said their current whereabouts are unknown - but they are working with Turkish authorities to find them.
Assistant Chief Cons Russ Foster said: "Our primary concern is the safety and welfare of the young children and the safe return of the young family.
"We would urge anyone with information about the family’s whereabouts to come forward and speak to police.
"Any piece of information, no matter how small, could help the UK or overseas authorities to locate the family so that they can be safely returned home."
He said family members told police Imran's brother Rehan Noor-Ul-Ameen was thought to have travelled to Turkey on June 29 from Manchester Airport - but his whereabouts and reasons for travel were unknown.
He added: "We are unaware if the missing family have joined their brother. Rehan has not been reported missing to police."
Anyone with information should call West Yorkshire Police on 101.