The man, who has been identified by media as Christian Brückner, had been serving a seven-year sentence from his 2019 conviction for the rape of a 72-year-old American woman.

Christian Brückner in court in Braunschweig, Germany, in Sep. 2024.Moritz Frankenberg / AFP via Getty Images file

A German man who is under investigation in the disappearance of British toddler Madeleine McCann 18 years ago was released from prison Wednesday after serving his sentence in an unrelated case, police said.

The man, who has been identified by media as Christian Brückner, had been serving a seven-year sentence that stemmed from his 2019 conviction for the rape of a 72-year-old American woman in Portugal.

Verena Brinkmann, a spokeswoman for the Lower Saxony justice ministry, confirmed to NBC News that he left the prison at Sehnde, near Hannover in northern Germany, on Wednesday morning.

In June 2020, German prosecutors said the man was being investigated on suspicion of murder in connection with McCann’s disappearance on May 3, 2007, from an apartment complex in the Portuguese resort of Praia da Luz. They said they assumed the girl was dead.

Police have since carried out more searches in Portugal. But the suspect, who has denied any involvement in her disappearance, has not been charged in the case. The investigation is not affected by his release. He also remains a suspect in an investigation into McCann’s disappearance being conducted by Britain’s Metropolitan Police, who say he refused their request for an interview.

His lawyer, Friedrich Fülscher, has said charges would have been filed against his client long ago if there had been sufficient evidence.

The 48-year-old spent many years in Portugal, including in the Algarve resort of Praia da Luz around the time of Madeleine’s disappearance.

Investigators in the U.K., Portugal and Germany are still piecing together what happened on the night 3-year-old Madeleine disappeared. She was in the same room as her brother and sister — 2-year-old twins — while their parents, Kate and Gerry, had dinner with friends at a nearby restaurant.

The suspect was tried last year over several unrelated sexual offenses he was alleged to have committed in Portugal between 2000 and 2017 and was acquitted in October. The presiding judge said the evidence was insufficient for a conviction, that the court heard from unreliable witnesses and that some had been influenced by media reports on the defendant.

The state court in Hildesheim has said it cannot legally disclose whether he will have to fulfill any conditions after his release. But Fülscher confirmed to regional public broadcaster NDR that his client will be required to wear an electronic foot tag, report regularly to probation services and give up his passport. German weekly Der Spiegel first reported on that decision, without naming sources.

He still faces an Oct. 27 court date in Oldenburg in northwestern Germany in a case in which he is accused of insulting a prison employee. A district court in the city sentenced him to six weeks in prison for that, but the defense has appealed.