TIMELINE-The disappearance of Madeleine McCann

LONDON (Reuters) - Four-year-old Madeleine McCann from Rothley, Leicestershire, disappeared on May 3 during a holiday with her parents in the Algarve region of southern Portugal.

Here is a chronology of developments:

May 3 - She goes missing from her bedroom between 9.30 and 10 p.m. while her parents Kate and Gerry are dining just 100 yards away at the Mark Warner Ocean Club holiday resort in Praia da Luz. A window and shutter are open and she is presumed to have been abducted.

May 4 - McCann family members and British media criticise local police for what they call a slow initial response, failure to notify ports and borders in time, and failure to secure the crime scene, which may have led to vital clues being lost.

Police say that under Portuguese secrecy laws they are unable to reveal details of the investigation.

May 5 - Police say they have put together a sketch of a suspect and confirm they believe Madeleine is still alive and being held within three miles of the crime scene. Media reports say the sketch is vague and only features the back of a man's head.

May 8 - Police say they have investigated 350 suspicious incidents but still have no idea where she might be.

Portuguese newspaper Correio de Manha says Madeleine may have been kidnapped by a paedophile ring.

Manchester United's Portuguese striker Cristiano Ronaldo joins appeals for her release.