Bangladesh's former prime minister Khaleda Zia, who many believed would sweep elections next year to lead her country once again, died on Tuesday aged 80, her Bangladesh Nationalist Party said.
"The BNP Chairperson and former prime minister, the national leader Begum Khaleda Zia, passed away today at 6:00 am (0000 GMT), just after the Fajr (dawn) prayer," the party said in a statement.
"We pray for the forgiveness of her soul and request everyone to offer prayers for her departed soul," it added.
Despite years of ill health and imprisonment, Zia vowed in November to campaign in elections set for February 2026 -- the first vote since a mass uprising toppled her arch-rival Sheikh Hasina last year.
The BNP is widely seen as a frontrunner.
But in late November she was rushed to hospital, where, despite the best efforts of medics, her condition declined from a raft of health issues.
Nevertheless, hours before her death, party workers had on Monday submitted nomination papers on her behalf for three constituencies for the polls.
During her final days, interim leader Muhammad Yunus called for the nation to pray for Zia, calling her a "source of utmost inspiration for the nation".
BNP's media chief Moudud Alamgir Pavel also confirmed Zia's death to AFP.
Zia was jailed for corruption in 2018 under Hasina's government, which also blocked her from travelling abroad for medical treatment.
She was released last year, shortly after Hasina was forced from power.
There had been plans earlier this month to fly her on a special air ambulance to London, but her condition was not stable enough.
Her son, political heavyweight Tarique Rahman, only returned to Bangladesh after 17 years in self-imposed exile on Thursday, where he was welcomed back by huge crowds of joyous supporters.
Rahman will lead the party through the February 12 general election, and is expected to be put forward as prime minister if his party wins a majority.
Bangladesh's Prothom Alo newspaper, who said that Zia had "earned the epithet of the 'uncompromising leader'", reported that Rahman and other family members were by her side at the time of her death.
"The lives of politicians are marked by rises and falls," the newspaper wrote on Tuesday.
"Lawsuits, arrests, imprisonment, persecution, and attacks by adversaries are far from uncommon. Khaleda Zia endured such ordeals at their most extreme."