Detectives want to question Abedi's younger brother Hashem, who has been detained in Libya, and are "engaging with" British prosecutors and Libyan authorities, Jackson said. "We do however suspect others were either aware or complicit in the knowledge of this attack".
While authorities still believe that "more arrests are possible", in the wake of the attack that killed 22 people, they're learning more about Abedi's life.
Manchester police were not immediately able to confirm the comments, which were made at a media briefing.
He continued: "We do believe that there are other people potentially involved in this".
And Mr Jackson did not rule out further arrests.
"We are now engaging with the Crown Prosecution Service and the Libyan authorities", he said. "This is a live criminal investigation where central to it are 22 murdered people with grieving families".
Now Greater Manchester Police hope to speak to Hashem as part of their investigation.
However, he did give some detail about what detectives had discovered so far.
The bomb had a "devastating" impact and gouged out a section of the concrete floor of Manchester Arena in the heart of the city.
The suicide bomber, Salman Abedi, aged 22, was not part of a terror network, police said, but others may have known that he was going to launch an attack. They're working with the Libyan government to have Abedi's brother Hashem turned over as well.
"At it stands 23 people have now been arrested in connection with this investigation, of which two were quickly de-arrested, and 20 were released without charge", according to a police update Friday.
Mr Jackson said Salman Abedi travelled to Libya a number of times and they were investigating how he obtained the skills to make a bomb.
The Airbus, which was carrying 345 passengers and 14 cabin crew, flew for another hour before landing safely in Brisbane . As the mid-air confusion unfolded, the pilot ordered passengers to turn off all electrical devices and cameras.
Once the plane landed, mother and baby were taken to Louisiana's Ochsner Medical Center and are both doing well, Spirit said. The nurse clamped down on the umbilical cord with some rubbery straps they found on the plane, she added.
The Ambassador of Bhutan has a lodged a protest with the Chinese Government through their Embassy in New Delhi on June 20. Geng added: "The Indian troops are now in Chinese territory, and the matter remains unsettled".
On the inventory side, USA oil inventories fell by 0.8 per cent MoM in June to 509.2 million but were 3.1 per cent higher YoY. In a separate note on Wednesday, Goldman cut its WTI forecast for the next three months by $7.50 a barrel to $47.50.
Tom Holland and the director Jon Watts attending the "Spider-Man: Homecoming " photocall at Zuma in Rome, Italy. Pascal, who has transitioned from studio chief to producing, said, "I feel really lucky".
An evacuation standby has been put in place for the roughly 40 homes in the Gold Hill neighborhood. [Updated: June 5, 7:25 p.m. The Summit County Emergency Management said over 450 homes were ordered to evacuate, but no homes have been destroyed.
Prayers and support for Charlie have been flooding in from across the world, including from Pope Francis and U.S. A USA doctor and a Catholic hospital in Italy both offered to care for Charlie if he can be transferred.
So by sailing within that distance of Triton, the Stethem dismissed China's claim to both the island and the waters around it. The destroyer came within 12 miles of Triton Island - which is claimed by China - much to the fury of Beijing.
Nitish Kumar also downplayed his earlier comments holding the Congress responsible for the "current mess" in the opposition ranks. Political events around the upcoming Presidential poll issue pushed the farmers' issue far back.
Kobach has not returned numerous requests for comment about the election integrity commission . The request included asking for the last four digits of voters' Social Security numbers.
Game To Rob Kardashian: "Put The Phone Down Homie"
Things just got even uglier in the Blac Chyna and Rob Kardashian feud, and it looks like lawyers may be getting involved. He accused her of taking drugs and having plastic surgery after the birth of Dream last November.
Who Won Nathan's Hot Dog Eating Contest 2017?
And true to form, " Joey the jaws" did not disappoint! Both he and Stonie are from San Diego, California. Meanwhile, for those who find this sort of hot dog overindulgence objectionable, you're not alone.
New Jersey government shuts down in budget standoff
Democratic Assembly Speaker Vincent Prieto opposes the bill and refuses to consider it for a vote, leading to a stalemate. I will not tax them anymore and in my budget overall taxes were decreased. "I've been coming here for 18 years".
JJ Redick agrees to one-year $23 million deal with 76ers
Entering the weekend, their top priorities were Denver forward Danilo Gallinari, Utah's Ingles and San Antonio's Jonathan Simmons. He averaged 15 points in 78 games last season for the Los Angeles Clippers and shot 42.9% from deep.
Utah Jazz on verge of landing Ricky Rubio
Teague averaged 15 points and almost eight assists per game last season with the Indiana Pacers last season. That's more money per year than the Ricky Rubio deal, but Rubio would likely command more money next year.
Simone Veil, 'the best of France,' dies
Tributes honouring her courage and determination to advance women's rights were paid from within France and beyond. Born Simon Jacob in Nice in 1927, Veil was 17 years old when she was sent to Auschwitz concentration camp.