A 73-year-old from Pakistan who is the oldest prisoner at the Guantanamo Bay detention centre was notified on Monday that he has been approved for release after more than 16 years in custody at the US base in Cuba, his lawyer said.

Saifullah Paracha, who has been held on suspicion of ties to Al Qaeda but never charged with a crime, was cleared by the prisoner review board along with two other men, said Shelby Sullivan-Bennis, who represented him at his hearing in November.

As is customary, the notification did not provide detailed reasoning for the decision and concluded only that Paracha is “not a continuing threat” to the US, Sullivan-Bennis said.

It does not mean his release is imminent. But it is a crucial step before the US government negotiates a repatriation agreement with Pakistan for his return.

US President Joe Biden’s administration has said it intends to resume efforts to close the detention centre, a process that former president Donald Trump halted.

Read: Biden’s aides revive goal of closing military prison at Guantanamo Bay

Paracha’s attorney said she thinks he will be returned home in the next several months. “The Pakistanis want him back, and our understanding is that there are no impediments to his return,” she said.

A Pentagon spokesman had no immediate comment.

Uthman Abd Al Rahim Uthman, a Yemeni who has been held without charge at Guantanamo since it opened in January 2002, was also notified that he had been cleared, according to his attorney, Beth Jacob, who spoke to him by phone.

“He was happy, relieved and hopeful that this will actually lead to his release,” Jacob said.

Paracha, who lived in the US and owned property in New York City, was a wealthy businessman in Pakistan.

Authorities alleged he was an Al Qaeda “facilitator” who helped two of the conspirators in the September 11 plot with a financial transaction. He says he didn’t know they were Al Qaeda and denies any involvement in terrorism.

The US, which captured Paracha in Thailand in 2003 and has held him at Guantanamo since September 2004, has long asserted that it can hold detainees indefinitely without charge under the international laws of war.

In November, Paracha, who suffers from a number of ailments including diabetes and a heart condition, made his eighth appearance before the review board, which was established under former US president Barack Obama to try to prevent the release of prisoners who authorities believed might engage in anti-US hostilities upon their release.

At the time, his attorney said he was more optimistic about his prospects because of Biden’s election, his ill health and developments in a legal case involving his son, Uzair.

Uzair Paracha was convicted in 2005 in federal court in New York of providing support to terrorism, based in part on testimony from the same witnesses held at Guantanamo whom the US relied on to justify holding the father.

In March 2020, after a judge threw out those witness accounts and the government decided not to seek a new trial, Uzair Paracha was released and sent back to Pakistan.

Saifullah Paracha is one of 40 prisoners still held at Guantanamo, down from a peak of nearly 700 in 2003.

With this latest review board decision, there are now about nine men held at Guantanamo who have been cleared for release, including one who has been approved since 2010.

Under Obama, the US would not return men to Yemen because of the civil war there and often struggled to find third countries to accept former prisoners.

Given that history, Jacob was only cautiously optimistic about her client’s release. “I’m just hoping that in 11 years he’s not just still sitting there with his clearance still at Guantanamo,” she said.

There are 10 facing trial by military commission and two who have been convicted, including one awaiting sentencing. Proceedings in the tribunals have been on hold because of the Covid-19 pandemic.