Irish police said they have arrested a man in connection with the London Bridge attack.
Armed officers are surrounding a Garda Station in Wexford as a man's being questioned over the London attack this morning.
However, following initial inquiries, gardai do not believe the man came into direct contact with the terrorist.
Redouane, a pastry chef of Moroccan and Libyan descent, moved to the Irish capital of Dublin in 2016 with his British-born wife Charisse O'Leary. He was identified after a documentation check in Britain found he had lived in south Dublin for some time.
London Mayor Sadiq Khan stands side-by-side with the chief of London police, Cressida Dick, to condemn attack at London Bridge, in which seven people were killed.
Gardaí say a file is being prepared for the Director of Public Prosecutions following the discovery of documents at a flat in Limerick city which were in the name of one of the London terror attackers.
Did Venus Williams just reveal the gender of Serena Williams' baby?
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At the time of the attack he was working in a London restaurant and continued to have contacts with his mother in Italy, which he visited previous year, Corriere wrote.
Butt had also been featured previous year in Channel 4 documentary The Jihadis Next Door.
The garda investigation into Redouane's time in Ireland intensified over the past 48 hours.
He is believed to have had access to an Irish-registered auto in London and it is suspected he brought that vehicle over and back between Ireland and Britain on the vehicle ferry.
The nature of the card has not been divulged but sources said it was most likely to have been either a GNIB identity card or an Irish EU Fam Card, a type of residency card for non-EU citizens linked to an EU resident in Ireland.
Gardaí believe it is possible Redouane and his wife chose to marry in Dublin because they feared their wedding plans would be blocked in the United Kingdom because his asylum bid there had failed.
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