Qatar Finance Minister Ali Sharif Al-Emadi was arrested for questioning over allegations of embezzlement, abuse of power and crimes related to the public sector, a statement carried by state news agency QNA said on Thursday.
An investigation is underway, the statement added.
Emadi has been minister of finance since 2013 and sits on the board of its powerful $300 billion sovereign wealth fund, the Qatar Investment Authority.
He is also chairman of the board of directors of Qatar National Bank.
Emadi steered Qatar's economic policies during the 2014-2015 oil price crash that prompted the country to accelerate plans to diversify the economy.
He was named as 2020’s best minister in the region by The Banker, an international financial magazine that organises an annual celebration of finance ministers.
Qatar, which next year will host the FIFA World Cup, has invested heavily in infrastructure over the past few years ahead of the event, which means spending on major projects is set to decrease this year, the finance ministry has said.
The United States cancelled a planned Budapest summit between President Donald Trump and Russian leader Vladimir Putin following Russia's firm stance on hardline demands regarding Ukraine, the Financial Times reported on Friday.
Hurricane Melissa's confirmed death toll has climbed to 49, according to official reports, after it wreaked destruction across much of the northern Caribbean and headed towards Bermuda.
Britain's King Charles has stripped his younger brother Andrew of his title of prince and forced him out of his Windsor home, Buckingham Palace said on Thursday, seeking to distance the royals from him over his links to the Jeffrey Epstein scandal.
The death toll from the heavy floods in central Vietnam has risen to 13, the government said on Friday, as residents of the flooded Hoi An started clean-up operations as the water levels began to subside.
The US has granted India a six-month sanctions waiver to operate the Iranian port of Chabahar, India said on Thursday, boosting its efforts to enhance trade with Afghanistan and Central Asian countries bypassing Pakistan.