Ahmad Zahidi was also accused of misusing funds from his family-run charity foundation.
It added that he faces several charges under the Malaysian Anti-Corruption Commission Act 2009 and the Anti-Money Laundering, Anti-Terrorism Financing and Proceeds of Unlawful Activities Act 2001.
Umno supreme council member Lokman Noor Adam revealed the arrest at the MACC headquarters in Putrajaya yesterday in a Facebook post: "Datuk Seri Zahid informed me that he was arrested upon his arrival at MACC headquarters".
Dr Ahmad Zahid's wife, Hamidah Khamis and daughter Nurul Hidayah were among those present.
Najib, who local media reported was at court on Friday to give "moral support" to his former deputy, has denied any wrongdoing and pleaded not guilty to 32 criminal charges involving more than 2.3 billion ringgit ($553m) allegedly siphoned from the fund. Rosmah has pleaded not guilty to 17 money-laundering offences.
The anti-graft agency said Zahid was detained at its office shortly after he was summoned as part of its probe into abuse of power, criminal breach of trust and money laundering at a welfare group.
Coincidentally, Najib also made a return to MACC - the second time this week - said to answer questions on 1MDB's dealings with Abu Dhabi's state-owned International Petroleum Investment Co (IPIC).
Some UMNO leaders urged party members to rally behind Zahid.
The UMNO quickly came to the defense of Ahmad Zahid, who was elected as party chief after May's polls, and said the arrest was politically motived.
Graft investigators have had four questioning sessions with Dr Ahmad Zahid, the first on July 3, followed by three interviews last week on Oct 10, 11 and 12, with each lasting more than eight hours. "Please pray for him", she said.
But the direct, public pressure from Trump puts Mexico, already an uneasy ally the last two years, in an uncomfortable spotlight. After arriving at the tall, yellow metal fence Friday, some clambered atop it and on US -donated military jeeps.
Northern Florida and southern Georgia have the greatest odds for above-average precipitation during the winter, the NOAA said. The NOAA prediction has contradicted the Farmer's Almanac prediction, which said the winter will be harsh this season.
LSU head coach Ed Orgeron said he was "pissed" that he was not more aggressive in last Saturday's loss at Florida . In the fourth quarter, Georgia closed to with 29-16 on a 27 yard touchdown pass from Jake Fromm to Riley Ridley.
You can order a print of " The Republican Club " for as little as $155; the artist even sells his work as coffee mugs or puzzles. President Donald Trump says he's selected Washington lawyer Pat Cipollone to serve as his next White House counsel.
Interior Minister of Italy and leader of the far-right party "League" Matteo Salvini said that Ukraine is fueling a religious war. Italian Prime Minister Giuseppe Conte is due in Moscow next week for talks with Putin and Prime Minister Dmitry Medvedev.
Speaking at the University of Minnesota, Roberts emphasized the Supreme Court's independence from the political branches. That independence, he said, has assisted the court in the past in making great and correct decisions, such as Brown v.
Kensington Palace announced on Monday that Meghan and Prince Harry are expecting their first child , due in spring 2019. But with about six months left till she gives birth, we have a feeling she'll be doing a lot of downward facing dogs.
Europe, Japan ready spacecraft for 7-year journey to Mercury
Its creators are hoping those final orbits around Mercury will help solve some of the many questions about the perplexing planet. The European Space Agency says the 1.3 billion-euro ($1.5 billion) mission is one of the most challenging in its history.
Israel steps up armored deployment near Gaza
The Hamas-run Health Ministry in Gaza claimed 130 Palestinians were wounded in the disturbances. "The situation is delicate. Hamas even pledged to undertake a full investigation into the incident, in an apparent bid to calm new fears of war.
Royal tour: Harry and Meghan brighten up Bondi Beach
Thousands turned out to greet Harry and Meghan with an array of colourful placards as Melbourne was overwhelmed with "MegMania". Meghan , 37, and Harry , 34, took the tram to the beach to meet lifeguards and volunteers that help keep the beach clean.
Wimbledon to introduce final set tie-breaks from 2019
When asked about the decision, Isner said: "I am in favour of the new fifth-set tie-break rule Wimbledon introduced today". The rule applies to men's, women's and doubles matches, and will differentiate Wimbledon from the other three grand slams.
US Treasury sends China warning shot regarding currency
And there are signs that the currency may fall further to 7 yuan per dollar -- a level not seen since the 2008 financial crisis. China's foreign ministry welcomed the report and said it reflected "common sense and the consensus of the global community".
Julian Assange in Embassy's Doghouse Over His Cat
The cat that Assange gave his children, often looks out the window of the Embassy to watch the journalists who gather outside. In particular, the co-founder of WikiLeaks, was asked to monitor the "well-being, nutrition and hygiene" cat.