Updated

Cops have revealed Manchester attacker Salman Abedi was living off student loans before orchestrating the horror attack that claimed the lives of 22 people.

Brit authorities now believe “more arrests are possible”, confirming they are liaising with authorities in Libya about warped bomber Salman Abedi’s brother over the atrocity in May.

Chief Superintendent Russ Jackson said he believed others were either "aware or complicit" in the horrific attack, saying cops were still piecing together details about the bomber's background and beliefs.

salman abedi

Undated handout photo from an unnamed source made available on Wednesday May 24, 2017 of Salman Abedi. British authorities identified Salman Abedi as the bomber who was responsible for Monday's explosion in Manchester which killed more than 20 people. (AP)

He said planning ahead of the attack had taken "many months", telling media that the bomber had access to student loans and other resources to fund his travel and rent.

He said: "We do believe that there are other people potentially involved in this. We do however believe further arrests are possible."

He confirmed that police now wanted to interview brother Hashem Abedi, who was arrested in Tripoli after the attack at an Ariana Grande concert.

Manchester Mourning Reuters

Flowers and messages for the victims of the Manchester Arena attack are seen in central Manchester, Britain May 23, 2017. REUTERS/Darren Staples - RTX377BG

Officers and the Crown Prosecution Service are currently speaking with the Libyan authorities.

Investigators have trawled through three million files and 16,000 hours of CCTV footage as they try to trace Abedi's movements in the days and weeks leading the bomb blast.

Police have previously revealed they believed Abedi had bought bomb parts just days after arriving in the UK from Turkey.

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The bomb had been made for just $85, with the bomber using easy-to-buy items from B&Q and Screwfix.

Officers are also trying to find a missing blue suitcase the killer was seen dragging around.

The killer had been caught on CCTV before the attack, stalking the streets of Manchester.

An ongoing review by security services is under way into what was known about Abedi by the authorities, after claims that he had been reported more than once over his extremist attitude.

This article first appeared in The Sun.