Police arrest aristocrat and partner, but search for missing baby continues

London CNN — UK police have arrested an aristocrat and her partner after the pair went missing with their newborn baby in early January, but the search for the infant continues.

A member of the public spotted Constance Marten, 35, and Mark Gordon, 48, in Brighton, southern England, on Monday night, police said Tuesday.

The couple were arrested at the location on suspicion of child neglect, officers said. They remain in custody.

Their baby, who police believe was born possibly one to two days before disappearing without receiving medical attention, is still missing and an “urgent search operation” is underway.

“Work is ongoing to try and locate the baby,” a spokesperson for the UK’s Metropolitan Police service told CNN Tuesday. “Anyone with information, we would ask them to call in if they’ve got something they think can help.”

The search for the couple and newborn began in early January, with police releasing several appeals and offering a £10,000 ($12,090) reward for information that would lead to their discovery.

In a renewed appeal for information last week, Detective Superintendent Lewis Basford of the Met’s East Area Command said more than 630 hours of security camera footage had been reviewed and police had received more than 350 calls from members of the public.