British police said they had arrested two men on Saturday as they stepped up their efforts to capture a suspected network behind the suicide bomber who killed 22 people in Manchester earlier this week. Officers used a controlled explosion to gain entry to the address in the north of the city where the latest arrests were made. Detectives are now questioning 11 men over the attack by Salman Abedi at a pop concert in Manchester on Monday. Britain remains on its highest threat level of critical, meaning an attack is expected imminently, with the army backing up police and hospitals across the country have told staff to be ready for another incident. Media agencies