ISLAMABAD (Reuters) - A Pakistani anti-corruption court on Thursday indicted ousted Prime Minister Nawaz Sharif and his daughter over allegations linked to ownership of London properties, opening a trial that could see the former leader jailed.

Pakistan's former prime minister Nawaz Sharif speaks during a news conference in Islamabad, Pakistan September 26, 2017. REUTERS/Faisal Mahmood

The Sharifs have called the corruption proceedings against them a conspiracy, hinting at intervention by the powerful military, but opponents have hailed it as a rare example of the rich and powerful being held accountable.

Sharif, 67, resigned in July after the Supreme Court disqualified him from holding office over an undeclared source of income, but the veteran leader maintains his grip on the ruling Pakistan Muslim League-Nawaz (PML-N) party.

Sharif said there was no precedent for indicting someone in his absence. “I hope I will get justice,” he told reporters in London in remarks broadcast by local Geo TV, adding that he would travel home to attend the next court hearing.

Judge Bashir Ahmad of the court that tries cases registered and investigated by an anti-graft body, the National Accountability Bureau (NAB), indicted Sharif, his daughter Maryam Sharif and her husband, Muhammad Safdar. They all pleaded not guilty.

Maryam and Safdar were present in court, but Sharif, who was prime minister twice in the 1990s, sent a representative while he tends to his wife as she undergoes cancer treatment in Britain.

Maryam said in the court that the charges were unfounded and baseless.

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“This will go down in history as a travesty of justice,” she said.

Outside the court, Maryam again hinted at military interference in the judicial process by saying the trial was “a repeat of 1999”, the year her father was toppled in a military coup led by former army chief Pervez Musharraf.

It is not clear if she was comparing the trial to the coup, or subsequent corruption accusations and investigations that Musharraf ordered into Sharif.

Sharif’s disqualification stemmed from the Panama Papers leaks in 2016 that appeared to show that his daughter and two sons owned offshore holding companies registered in the British Virgin Islands and used them to buy posh flats in London.

The Supreme Court initially declined to dismiss Sharif but ordered an investigation into his family’s wealth.

A separate Supreme Court-appointed panel said the family’s wealth did not match its income, and accused Maryam and her brothers of signing forged documents to obscure ownership of offshore companies used to buy the London flats.

After the probe, the top court disqualified Sharif and ordered the NAB to investigate and conduct a trial. Sharif denies ever receiving the small source of income that led to his disqualification.

The NAB has in the past been described as toothless because of its low conviction rates, especially when it comes to powerful politicians, and investigations that last many years.

But the Supreme Court has ordered the trial to be concluded within six months.

Opening arguments are due to begin on Oct. 26.