The British High Commission in Pakistan has joined the investigation into missing schoolgirl Molly Campbell.
Molly Campbell was last seen on the Western Isles on Friday
Staff in Islamabad said they were aware of the case and had been in contact with her mother's lawyers and police.
The 12-year-old is believed to be in Pakistan after flying from Scotland with her father and sister on Friday.
Osama Saeed, of the Muslim Association of Britain, said friends close to Sajed Rana were angry the case had been portrayed as an abduction.
Northern Constabulary launched a search for Molly, also known as Misbah Iram Ahmed Rana, because her mother Louise Campbell is her legal guardian.
Ms Campbell and her daughter moved to Tong, a village in Lewis, Western Isles, from Stranraer nine months ago.
The mother made an emotional appeal for Molly to come home at a press conference in Stornoway on Tuesday.
Under a legal protocol signed by Britain and Pakistan in 2003, Ms Campbell will be able to apply to the courts for the return of her daughter.
The protocol was established to speed up the resolution of more than 300 similar cases of alleged abduction that are registered each year.
Two judges - one in Britain, the other in Pakistan - are nominated to handle the case, sensitively and in the best interests of the individual concerned.
Mr Saeed, Scottish spokesman for the Muslim Association of Britain, said he had gathered information to the father's side of the case.
He said Molly along with her two brothers and older sister had lived with Mr Rana following his divorce from their mother.
Mr Saeed said: "They lived for a while in Pakistan.
"Upon return to the UK, out of his own free will, Sajed said the children should visit their mother.
"The older three, being over 16, returned to him. Misbah/Molly however did not. Court action followed for Louise to take custody of her."
"Sajed has not seen her since, despite serious attempts to locate his daughter."
Meanwhile, Glasgow Cental MP Mohammed Sarwar has been asked to help trace the family of Molly Campbell in Pakistan.
Western Isles MSP Alasdair Morrison said he intended to meet Mr Sarwar later this week to discuss how he can assist.
Mr Morrison said the Labour MP has good contacts in Lahore and previous experience from similar cases.
Molly and her mother Louise Campbell
The MSP said: "He has previously been involved in this type of case and in other types of incident involving British citizens.
"I will be later this week meeting with Mohammed Sarwar. He then flies out to Pakistan and he is going to do his utmost to trace the family and try and hopefully bring this to a happy and proper conclusion."
Nationalist MP Angus MacNeil has also been talking to police, the Foreign and Commonwealth Office and contacts in Scotland's Pakistani community in an effort to track down the girl.
He hopes to meet Pakistan's Prime Minister Shaukut Aziz, who is visiting London, on Friday.
Mr MacNeil said: "I know that the police, in conjunction with other agencies, are working flat out to trace Molly and I hope very much that this can be brought to a happy conclusion.
"Like people throughout the islands, my thoughts are with Molly's family and friends at this very anxious time."