Greater Manchester Police said Hashem Abedi, the younger brother of suicide bomber Salman Abedi, has been arrested for murder, attempted murder and conspiracy to cause an explosion likely to endanger life. He was taken to a London police station and is expected to appear in Westminster Magistrates' Court in the coming days.
"This is clearly an important moment in the investigation," British Prime Minister Theresa May said. "I hope it is a welcome step for the loved ones of all the victims."
Authorities believe Hashem played a major role in planning the suicide bombing, the deadliest in a string of extremist attacks in London and Manchester in the spring and summer of 2017. Targets in London included Westminster Bridge, London Bridge, and a north London mosque.
Salman Abedi, who set off the Manchester bomb at the end of an Ariana Grande concert on May 22, 2017, died in the explosion, which also wounded hundreds, including many with devastating injuries. British authorities have sought Hashem's extradition for nearly two years, saying he was involved in planning the attack.
Greater Manchester Police Chief Ian Hopkins said Libyan authorities handed Hashem over to British police in Libya Wednesday morning and he was immediately flown to Britain in police custody. He said that prosecutors had authorized the charges against Hashem stemming from the killing of 22 victims.
The Manchester bombing caused widespread anguish in part because so many of the dead and wounded were young fans of Grande, a pop star with a huge following, particularly among teenage girls.
Queen Elizabeth II made a personal visit to a Manchester hospital shortly after the bombing to comfort some of the victims with severe injuries. Grande and other major stars returned to Manchester several weeks after the explosion to perform an emotional benefit concert for victims.
The extradition of Hashem means a long-delayed inquest can proceed and opens the way for a criminal trial that may shed light on how the plot was executed.
Ahmed Bin Salem, a spokesman for the Tripoli-based Special Deterrence Force, said they extradited Hashem Abedi from Libya following a court order. The militia is allied with a U.N.-recognized government in the Libyan capital.
Both Hashem, who was then 18, and the boys' father, Ramadan Abedi, were detained by Libyan forces shortly after the attack. Hashem told investigators that both he and his brother belonged to the Islamic State group and that he knew about the attack, the Special Deterrence Force said at the time. The father wasn't charged and was later released.
The arrest warrant for Hashem Abedi was issued by a Westminster Magistrates' Court judge and approved by Home Secretary Sajid Javid.
Manchester police notified the victims' families earlier Wednesday that the long-awaited extradition was in process. It was slowed by the complicated political and military situation inside Libya.
Libya slid into chaos following the 2011 uprising that toppled and killed dictator Moammar Gadhafi. The country has since become a haven for rival armed groups.
The Tripoli government is currently seeking Western support as it battles forces loyal to Khalifa Hifter, a veteran Libyan general who launched an offensive against the capital in April. The Special Deterrence Force is one of several militias loosely aligned with the government that are battling Hifter's forces.
Samy Magdy reported from Cairo.
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