More arrests over Manchester bombing as United Kingdom lifts terror alert

British security services are under scrutiny after leaked reports claimed Abedi's parents had alerted authorities to his radicalisation in Manchester, persuading him to come to Libya and confiscating his passport until he claimed he wanted to go on a pilgrimage to Mecca.

Manchester bomber Salman Abedi apparently wasn't the only member of his family to harbor extremist views as Libyan officials arrested both the the suicide bomber's younger brother and father between late Tuesday night and Wednesday. Security officials believe others masterminded his attack on Monday's Manchester concert that killed 22.

Police have so far announced six arrests and Abedi's home was raided by special forces about 12 hours after the suicide attack.

Early Thursday, police said they conducted a controlled explosion in the south of Manchester where they were carrying out searches in the Moss Side area connected to the attack.

Prime Minister Theresa May said security officials had raised their assessment of the threat to Britain to "critical", indicating an attack was imminent.

Abedi's 23-year-old brother Ismail was arrested in Manchester on Tuesday.

"The times I've been told that "5 eyes" partners are so much more reliable than [Europol] for handling sensitive data", he wrote.

"Historically, and almost philosophically, the USA and United Kingdom intel services follow different paths", the official said on condition of anonymity because he wasn't authorized to speak about the investigation.

Among one of the USA news outlets disclosing information withheld from the British press was the New York Times who published photos on Wednesday that reportedly shows remnants of the explosive device and fragments of a backpack used in the terror attack.

Meanwhile, it emerged his father had been a revolutionary fighter who had publicly voiced support for an Al Qaeda-linked group fighting in Syria. "I know everything about my brother, what he was doing there in Manchester".

Using documents obtained from inside Islamic State, we have been investigating for a year how this group was radicalized, and who did the radicalizing.

Officials are probing how often Abedi had traveled to Libya, which has seen an eruption of armed Islamist groups since dictator Moammar Gadhafi was overthrown and killed in 2011.

The changing of the guard ceremony at Buckingham Palace was canceled Wednesday so police officers can be re-deployed, Britain's defense ministry said.

He said: "We don't believe in killing innocents".

"We are furious. This is completely unacceptable", a government ministry source said of the images "leaked from inside the USA system". Officials said 64 people remained hospitalized, including 20 who were critically injured.

  • Leroy Wright