In pictures: Farewell to the twins

1 of 9 Tens of thousands of people gathered to pay their respects to Ladan and Laleh in south-west Iran

2 of 9 People came from far and wide, by car, bus and motorcycle, to their small home village

3 of 9 Tributes, including photographs and placards, were hung on the family home

4 of 9 Police tried to maintain some order as the coffins were carried through the crowd

5 of 9 A note attached to flowers on the coffins read: "Separated. Rest in Peace"

6 of 9 Separate graves had been prepared for the 29-year-old sisters

7 of 9 Their mother sobbed uncontrollably and their father fought to keep his composure as they were laid to rest

8 of 9 Dadollah Bijani said he had been overwhelmed by messages of sympathy

9 of 9 One presidential adviser has called for the twins' birthday to be declared a "day of hope"