ISLAMABAD (Reuters) -A Pakistani anti-graft court jailed former Prime Minister Imran Khan and his wife Bushra Khan for 14 years each on charges of illegally selling state gifts, his party and lawyers said on Wednesday, just over a week before a national election.

The verdict, which marked the third conviction handed down to the embattled ex-cricket star in the last few months, also included a 10-year disqualification from holding public office, his party, the Pakistan Tehreek-e-Insaf (PTI), said.

Bushra Khan, commonly known as Bushra Bibi, gave herself up for arrest shortly after the verdict, PTI added.

The 14-year imprisonment is harsher than the 10-year sentence given to Khan on Tuesday on charges of revealing state secrets, and comes as Pakistan prepares for an election on Feb. 8. It was not immediately clear if the two sentences for Khan would run concurrently.

"Another sad day in our judicial system history, which is being dismantled," Khan's media team said, repeating his denial of the charges.

"No cross-questioning allowed, no final argument concluded and decision pops up like a pre-determined process in play ... this ridiculous decision will also be challenged."

Khan's lawyer, Intezar Panjutha, told Reuters: "It is a sham verdict."

Khan and his wife were charged with illegally selling gifts, worth more than 140 million rupees ($501,000) and received during his 2018-2022 premiership, from a state treasury known locally known as the "Toshakhana".

Government officials have alleged Khan's aides sold the gifts in Dubai.

A list of these gifts shared by a former information minister included perfumes, diamond jewellery, dinner sets and seven watches, six of them Rolexes - the most expensive being a "Master Graff limited edition" valued at 85 million rupees ($304,000).

Khan was also handed a three-year prison sentence in August for the same charge by another court, but that sentence had been suspended on appeal.

VERDICT 'KARMA', SAY OPPONENTS

Wednesday's verdict followed an investigation by the country's top anti-graft body, the National Accountability Bureau (NAB).

Bushra's conviction was an attempt to pressurise Khan further, PTI's acting chairman and lawyer Gohar Ali Khan said in a television interview. "Bushra Bibi has no link to this case," he said.

While Khan has been found guilty in the other two cases, this is the first sentencing for his wife. The two were married in 2018, months before Khan ascended to premiership for the first time. It was Khan's third marriage after two divorces.

A prosecution team member, speaking to Reuters on the condition of anonymity, confirmed the verdict. A detailed verdict would be released soon, he said. Local broadcaster Geo News reported that the verdict also came with a hefty fine.

Khan's earlier conviction on the selling of state gifts charge resulted in a five-year ban from holding public office, ruling the 71-year-old out of the Feb. 8 election. Wednesday's verdict, however, means that he will be ineligible to hold office until he is 81.

His rival parties - the Pakistan Muslim League-Nawaz (PML-N) of three-time former Prime Minister Nawaz Sharif and the Pakistan Peoples' Party (PPP) of the late former premier Benazir Bhutto - hailed the ruling.

Bhutto's son, Bilawal-Bhutto Zardari, who now leads the PPP and is a prime minister aspirant, termed Khan's convictions a "karma" in a public rally on Wednesday.

Khan's political opponents and some rights activists have accused him of using the same anti-graft body when in power to throw opponents in jail and getting critical journalists fired, a charge his PTI party denies.

Sharif's daughter Maryam Nawaz, who is considered his political heir, also said the verdict "was nothing but a karma".

CRACKDOWN

Following the verdict against Khan and his wife police were deployed outside his party's offices in Islamabad and Lahore.

Khan has been fighting dozens of cases since he was ousted from power in a parliamentary vote of no-confidence in 2022. He says his ouster was backed by the powerful military with whom he fell out with when he was in office.

He and his party say that, since his ouster, they have been faced with a military-backed crackdown, including arrests of hundreds of supporters, party members and key aides.

The military, which has for decades held sway over Pakistan's politics, denies the charges.

NAB, the anti-graft agency that tried Khan, has at various times investigated, tried and jailed all prime ministers to have served since 2008, including Khan's main political rival Nawaz Sharif, whose party is considered the frontrunner in next week's election.

Violence has also risen ahead of the polls.

A national assembly candidate claiming to be backed by Khan's party was shot and killed in a tribal district along Afghan border on Wednesday, police said.

(Reporting by Asif Shahzad, Ariba Shahid and Shivam Patel; Writing by Gibran Peshimam; Editing by YP Rajesh, Raju Gopalakrishnan and Alex Richardson)