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.
US President Donald Trump and the leaders of Greenland and Denmark signed an agreement on Tuesday that permits a larger US military presence on Greenland and may resolve a standoff over the strategically located and mineral-rich island.
An F-16 fighter jet assigned to the US air base Spangdahlem in western Germany crashed on Tuesday, the US military said, adding that one pilot had ejected safely and was receiving medical treatment.
US President Donald Trump on Tuesday called for complete economic isolation of Iran, showing no intention to resume talks at the UN General Assembly but saying he believed a deal would be done after the US midterm elections in November.
Donald Trump is set for a whirlwind schedule of meetings with leaders from four continents at the UN General Assembly on Tuesday, against the backdrop of the wars in Ukraine and Iran that show no signs of abating.
A student opened fire in front of their high school in Turkey's western province of Manisa early on Tuesday, wounding at least 11 other pupils, Justice Minister Akin Gurlek said.
Sheikh Ahmed bin Rashid Al Maktoum has been laid to rest at Dubai's Umm Hurair Cemetery on Tuesday, following a funeral prayer attended by royals at Grand Zabeel Mosque.
Sheikh Ahmed bin Rashid Al Maktoum has passed away on Monday, with the Court of His Highness Sheikh Mohammed bin Rashid Al Maktoum, Vice President and Prime Minister of the UAE and Ruler of Dubai, declaring a 10-day mourning in the Emirate.