Mandatory Credit: Photo by MCPIX/REX/Shutterstock (8828094h)
The scene outside the Manchester Arena where serious incident has taken place.
Explosion at Manchester Arena, UK - 22 May 2017
New Manchester photos show detonator
01:37 - Source: CNN

Story highlights

UK says it will resume intelligence sharing with US

A cordon was temporarily set up in Wigan after discovery of "potentially suspicious items," police say

Manchester, England CNN  — 

Manchester suicide bomber Salman Abedi likely received some ISIS training in Syria in the months before the attack, according to information gathered in the preliminary investigation, a US official told CNN on Thursday.

The US believes ISIS, through that training, set the stage for the 22-year old to carry out the deadly attack at the Manchester Arena on Monday night, which killed 22 people as they left a pop concert.

Other members of Abedi’s family are believed to have been radicalized as well, the official said.

More details are emerging about the British-born killer, who spent time in Libya before the attack and transited through Istanbul and Dusseldorf airports, as police focus on tracking down his associates.

Authorities have made multiple arrests including the bomber’s brother, who was detained in Libya.

Donald Trump and Theresa May
UK angry over Manchester attack leaks
02:38 - Source: CNN

The latest revelations come as intelligence sharing between the US and the UK resumed after a temporary halt following a series of high-profile leaks to US media of details surrounding the Manchester bombing investigation, which were blamed on US government officials.

US-UK tensions

Mark Rowley, assistant commissioner of Britain National Police Chiefs Council, said after receiving “fresh assurances,” the UK was now “working closely” its key partners, “including all those in the ‘Five Eyes’ intelligence alliance.”

Under ‘Five Eyes,’ the US, UK, Canada, Australia and New Zealand share intelligence in one of the world’s tightest multilateral arrangements.

US sources were the first to reveal the identity of the bomber, leading to concern that police efforts to hunt down his associates could be impacted.

British Prime Minister Theresa May confronted President Donald Trump about the leaks during their meeting at the NATO headquarters in Brussels on Thursday.

In a written statement, President Trump described the leaks as “deeply troubling” and ordered an investigation. He added that,”There is no relationship we cherish more than the special relationship between the United States and the United Kingdom.”

US Secretary of State Rex Tillerson will press the point during his first official visit to the UK on Friday.