Police question concert goers outside Manchester Arena following a bombing which killed 22 people and injured many others.
A seventh person has been arrested in the UK in connection with the Manchester Arena bombing as police said they were investigating a network.
Police said they arrested the man in Nuneaton, Warwickshire, following searches.
The bomber's father, Ramadan, and younger brother, Hashem, have been detained by militia in Libya.
His older brother, Ismail, was detained in Chorlton, south Manchester, on Tuesday.
The police said the fifth UK arrest on Wednesday - in Wigan - involved a man who was carrying a package that is now being assessed.
'Troubling'
In the meantime, US President Donald Trump has said leaks of the investigation into the Manchester Arena attack to the US media are deeply troubling.
He said they were a grave threat to national security and promised to get to the bottom of it.
His remarks come after US media published photos from the scene of Monday night's explosion.
Salman Abedi blew himself up after an Ariana Grande concert, killing 22 adults and children and injuring 116.
Mr. Trump, who is at a Nato summit in Brussels along with UK Prime Minister Theresa May, said these leaks have been going on for a long time.
He pledged to ask the US Department of Justice to launch a review, and if appropriate, the culprit should be prosecuted.
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