The couple's visit to Namibia was shrouded in secrecy

Officers found a memory stick at the home of William Keys, police in the town of Westfield, Massachusetts, told the Associated Press news agency.

The Hollywood couple went to Namibia for the birth of their daughter Shiloh.

The pictures were reported to have been taken by Jolie's brother James Haven, who then sent his camera for repair. No-one has been arrested.

Police found the camera at Precision Camera and Video Repair in Enfield, Connecticut, where Mr Keys works.

Magazine deal

The camera and memory stick will be used in an investigation by Los Angeles authorities, AP reported.

The raids took place last week and came after three photographs appeared on the internet.

Pitt and Jolie sold the first official photos of their daughter to Hello! magazine, with the proceeds going to charity.

Their stay in Namibia was shrouded by heavy security, with bodyguards and undercover Namibian police officers shielding the celebrity parents from journalists and photographers.