A new development in the Madeleine McCann case is expected within the next few days, Sky News has learnt.

Crime correspondent Martin Brunt understands detectives may want to question a man who was in the Algarve holiday resort of Praia da Luz on the night the four-year-old disappeared.

He believes the development could tie in with alleged inconsistencies in the statements of those who were with Gerry and Kate McCann on May 3.

It follows reports in the local Portuguese media that police may be about to arrest a second British suspect.

Brunt says increased activity surrounding the case rings true with recent suggestions from Portuguese police that developments are likely within the next few weeks.

Police leave has been cancelled and officers have been granted a number of new search warrants which they are expected to execute within the next 48 hours.

"Certainly there is renewed activity in the case," Brunt said.

"More searches are about to begin and there could be a new suspect. It all suggests there is a new impetus to the investigation."

The latest developments in the case come as investigators wait on DNA test results on specs of blood found inside the McCanns's Algarve holiday home.

Madeleine vanished from the flat as her parents dined nearby 110 days ago.

Meanwhile, Belgian police have ruled out a possible sighting of Madeleine at a cafe last month.

The four-year-old in question, Sjanneke Hofstede, was spotted at the cafe with her father.