UK lowers attack threat level as police close in on bomber's network

By Michael Holden LONDON (Reuters) - British intelligence experts no longer believe another attack is imminent as significant progress has been made by police investigating the suicide bomb attack on a pop concert in Manchester, Prime Minister Theresa May said on Saturday. Police hunting a suspected network behind Salman Abedi, the bomber who killed 22 people on Monday night, said they had made two further arrests overnight and that they had a greater understanding of how his device was made. May said this meant the Joint Terrorism Analysis Centre (JTAC), the independent body which sets the threat level, had decided it should be lowered from its highest rating "critical", which meant an attack could be imminent, to "severe".