Intensive search for Manchester bomber's network

A spokesman for Britain's anti-terror police said in a statement that British investigators relied on trust with security partners around the world.

"We are furious. This is completely unacceptable", a government ministry source said. "This is completely unacceptable". "There's extensive investigations going on and activity taking place across Greater Manchester, as we speak".

Meanwhile, Britain's home secretary criticised U.S. officials for leaking sensitive information about the ongoing inquiry into the bombing.

Rudd said the "element of surprise" in the police and security service measures could be compromised by information being released too quickly.

The UK was put on its highlest level of alert following the attack.

It also published a diagram showing most of the fatalities occurred in a circle around the bomber, which it said indicated a powerful, high-velocity charge. He criticised media for publishing such material.

British-born Abedi was identified as the suspected suicide bomber responsible.

"I think it's very clear that this is a network that we are investigating", police chief Ian Hopkins said outside Manchester police headquarters. "When that trust is breached it undermines these relationships, and undermines our investigations and the confidence of victims, witnesses and their families".

But the father, Ramadan Abedi, denied his son's involvement in an interview with The Associated Press before being arrested, saying: "We don't believe in killing innocents".

Labour's Yvette Cooper, who chaired the influential Commons Home Affairs Committee before the general election campaign started, tweeted: "V troubled by USA leaking intelligence United Kingdom has given them in middle of live investigation where public safety at risk".

Two days after 22 people were killed and 119 more were wounded in an apparent suicide bombing following an Ariana Grande concert in Manchester, U.K, details are beginning to emerge about the 22-year-old suspect and his family's alleged ties to extremist groups in Libya.

Information about the bomber's identity first emerged in the USA - with American TV networks CBS and NBC naming Abedi as the suspect.

She added: "When this operation is over, we will want to look at his background and what happened, how he became radicalised and what support he might have been given".

"Yes, quite frankly", the home secretary told BBC Radio 4's Today programme. "If we gave up information that has interfered in any way with their investigation because it tipped off people in Britain - perhaps associates of this person that we identified as the bomber - then that's a real problem and they have every right to be furious".

  • Salvatore Jensen