( CNN ) -- Authorities in Portugal have received a letter from British prosecutors asking to interview people there in connection with the 2007 disappearance of Madeleine McCann , the authorities told CNN on Thursday . The letter was sent on January 10 by Britain 's Crown Prosecution Service , amid a renewed push to find the British girl who disappeared while on vacation with her family in the Portuguese resort town of Praia da Luz . She was 3 years old at the time , and the case prompted headlines around the world . The latest developments in the case come about three months after new police sketches were released of potential suspects and UK police appeared in a TV appeal for information . The program prompted a flurry of tips , and police in Portugal announced in October that they would reopen the case . Since then , the Portuguese investigation has run in parallel with the British one . Pedro do Carmo , the deputy national director of the Judiciary Police in Portugal , said last week that the Scotland Yard investigation was focused on three people but did not give further details . CNN 's Erin McLaughlin contributed to this report .
Portugal receives letter from UK Crown Prosecution Service asking to do interviews . The Portuguese government has been in talks with the British authorities about a possible extradition of Assange and other WikiLeaks staff members for questioning over allegations that they have committed crimes against humanity. Madeleine McCann was 3 years old when she disappeared in 2007 . She was on vacation with her family in the Portuguese resort town of Praia da Luz .