A woman has "begged" her ex-husband to return her children who he took to Libya five years ago.
Tanya Borg has been fighting to get her daughters back since Mohammed El Zubaidy left them with his mother in Tripoli in 2015.
Judges have jailed El Zubaidy, 41, of Wood Green, London, twice for breaching orders to get Angel, 19, and her eight-year-old sister Maya back.
"Their father is in control. He has all the power," Ms Borg said.
El Zubaidy, who was freed in November after completing his latest jail term, has told judges he does not know where his daughters are and cannot get them back to Britain.
Earlier this year Ms Borg, of Pewsey, Wiltshire, also took legal action in Libya after travelling to Tripoli.
She saw her children briefly during her visit but her lawyer said they disappeared after a Libyan judge ordered the grandmother to bring them to a court hearing.
Ms Borg, who was born in Malta and met El Zubaidy two decades ago, said she is heartbroken and not sure what to do next.
"I'm pretty much back to square one," she said.
"Their father is in control. He has all the power. He could get them back. I beg him to get them home."
Lawyer Pam Sanghera said the grandmother has "not been contactable and has left her family home".
She added Ms Borg has "made extensive inquiries in Libya to track down her children" but with no success.