Police investigating the recent bomb attacks in London are continuing their first full day questioning three suspects arrested yesterday.
They believe two of the men were among the group of four who carried out the failed bomb attacks on 21 July.
The third is being questioned to see if he is linked to a device found dumped in undergrowth two days later.
Also being questioned is a fourth suspect arrested in Birmingham on Wednesday. Under British terrorism laws the men can be held for up to 14 days.
A lawyer for a London bombing suspect in custody in Rome has indicated his client will fight his extradition to Britain.
The lawyer was speaking after a preliminary extradition hearing at a prison in Rome in relation to the Ethiopian-born British citizen, Osman Hussain.
He was arrested in the Italian capital yesterday, after police tracked calls made on his mobile phone. He had been staying with his brother, who was also arrested.
Meanwhile, Zambian police have confirmed they are holding a British national, named as Haroon Aswat, who is suspected of links to the 7 July attacks that left 56 people dead.
Police issue summary of investigation
Scotland Yard has issued a summary of its investigation into the London attacks.
Police say a total of 28 arrests have been made in the UK since the probe began.
Twelve of those suspects are still in custody with another man being held in Rome.
Searches have taken place at 14 addresses in London and two in Birmingham.
The investigation has generated over 5,300 police actions and detectives are examining over 8,500 documents and 35,000 CCTV tapes.
Brazilian funeral
The funeral of the Brazilian man mistakenly killed by British police in London last week has taken place in his home town.
Jean Charles de Menezes was shot eight times by officers who mistook him for a suicide bomber.
More than 10,000 people have visited the church in the rural town of Gonzaga where the coffin of the 27-year-old electrician was on display.
The British Police have apologised for the shooting, which is the subject of an independent inquiry.
A separate Mass for Mr de Menezes was held in London.
Speaking at the service, the most senior Catholic Bishop in England and Wales, Cardinal Cormac Murphy-O'Connor, said it was important to find out exactly what had happened.