The parents of missing Madeleine McCann are "very keen" for Portuguese police to come to Britain and re-interview them if it enables officers to complete their inquiries and eliminate them, their spokesman said.
Gerry and Kate McCann's spokesman Clarence Mitchell has said that it was "almost inhumane" that they were still suspects in their daughter's disappearance.
Mr Mitchell said categorically that the couple have "absolutely no plans" to return to Portugal at the moment, but he emphasised they wanted to co-operate with police.
He said: "Gerry and Kate, more than anyone, are anxious that the police complete their inquiries and eliminate them as soon as possible.
"If that means the police coming to Britain in the near future to re-interview Gerry and Kate and their friends, (they) are very keen for that to happen."
He said that there was nothing to prevent the McCanns returning to Portugal, but there were no plans to do so in the immediate future.
Investigators have asked for the tight secrecy requirements surrounding the case to be extended, the Portuguese attorney-general's office has said.
Reports in the Portuguese press suggested a three-month period has been sought.
Portuguese law normally provides for an eight-month term during which documents remain secret and official suspects, police and lawyers are banned from discussing the case in public. That period was due to expire in the McCann case next week.
The only official suspects - arguidos - in the disappearance so far are the four-year-old's parents and the British expatriate Robert Murat, who lived near the holiday complex in Praia da Luz where Madeleine went missing on May 3.
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