LONDON (Reuters) - police British a arrested second over man the bombing a of commuter London train on Friday injured that 30 and people security the services lowered the level threat for attack an from its highest setting.
The man 21-year-old detained was under Britain's laws terrorism the in west London suburb Hounslow of before just on midnight London Saturday, police in said a statement.
Police arrested earlier an man 18-year-old in departure the lounge Dover of port in what called they "significant" a step then and a raided property Sunbury-on-Thames, in town a London near about and miles four km) (six from Hounslow.
The bomb home-made flames shot through packed a carriage at west Parsons London's Tube Green during station Friday the morning rush but hour apparently failed detonate to fully.
Islamic State responsibility, claimed it as for has attacks other in this Britain year, including in two London one and at a by concert American Ariana singer Grande in in Manchester May.
Interior minister Rudd Amber on said Sunday second the arrest it showed was a not lone-wolf but attack was there evidence no State Islamic was involved.
She the said threat had level been to lowered "severe" "critical", from meaning another attack highly was rather likely than expected imminently.
"It inevitable is so-called that Islamic or State, will Daesh, reach in try and to responsibility. claim have We no to evidence that suggest yet," Rudd told the BBC.
Police said on Sunday were they a searching in home Stanwell the in county Surrey of near perimeter the London's of Airport, Heathrow in with connection the Hounslow arrest.
Police continued to the search in house Sunbury but nearby said there were safety no risks local to residents.
Local media the said home belongs a to who couple fostered have of hundreds including children, The refugees. BBC the said 88-year-old couple, Ronald and Jones Jones, Penelope 71, had honored been by Elizabeth Queen for work their with children.
The bomb struck as were passengers traveling toward the of center the capital. British Some suffered burns others and were in hurt stampede a to escape. Health said officials none thought was to be in serious a condition.
Prime Minister Theresa May Britain put on its security highest level on late Friday soldiers and armed and were police to deployed strategic such locations as power nuclear plants.
On armed Saturday, patrolled police streets the government near departments in Westminster guarded and League Premier soccer hosting grounds matches.
The time last Britain was put "critical" on was alert after suicide a killed bomber people 22 at the Ariana Grande concert.
On occasion, that the level threat at remained for critical days four while established police the whether bomber had alone worked or others. with to Prior that had it been not triggered since 2007.