This article is from the source 'bbc' and was first published or seen on . It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at http://www.bbc.co.uk/news/uk-29532703

The article has changed 5 times. There is an RSS feed of changes available.

Version 0 Version 1
London terror suspects face second day of questioning London terror suspects face second day of questioning
(about 3 hours later)
Four men face a second day of questioning by officers investigating what Scotland Yard say is an "Islamist-related" plot. Four men are being questioned for a second day by officers investigating what Scotland Yard says is an "Islamist-related" plot.
The men, all aged 20 or 21, were arrested in raids throughout the day on Tuesday which saw one of them Tasered.The men, all aged 20 or 21, were arrested in raids throughout the day on Tuesday which saw one of them Tasered.
Whitehall officials have said the operation "may have foiled the early stages" of a planned attack in the UK. The BBC understands one of them is Tarik Hassane, from west London.
Under terror legislation the men could be held without charge and questioned for up to 14 days. Whitehall officials have said the police operation "may have foiled the early stages" of a planned attack in the UK.
Under terror legislation the men could in theory be held without charge and questioned for up to 14 days.
They were detained under the Terrorism Act on suspicion of being involved in the commission, preparation or instigation of terrorism.They were detained under the Terrorism Act on suspicion of being involved in the commission, preparation or instigation of terrorism.
Syria-Iraq linkSyria-Iraq link
Met Commissioner Sir Bernard Hogan-Howe told BBC London radio it was a "quite serious case".Met Commissioner Sir Bernard Hogan-Howe told BBC London radio it was a "quite serious case".
"It is one of a series of arrests that we have had over the last few weeks which, taken together, for me confirm that the drumbeat around terrorism has changed."It is one of a series of arrests that we have had over the last few weeks which, taken together, for me confirm that the drumbeat around terrorism has changed.
"It's a more intense drumbeat - we are having to be more interventionist and a lot of it is linked back to Syria and Iraq."It's a more intense drumbeat - we are having to be more interventionist and a lot of it is linked back to Syria and Iraq.
"These are arrests that in some way or other have got that sort of link.""These are arrests that in some way or other have got that sort of link."
Security authorities believe more than 500 British nationals have travelled to Iraq and Syria to fight on behalf of Islamic State and other militant groups.Security authorities believe more than 500 British nationals have travelled to Iraq and Syria to fight on behalf of Islamic State and other militant groups.
'On top of things''On top of things'
Scotland Yard would not comment on where the four men were being held. A number of homes and vehicles were searched by specialist officers in west and central London on Tuesday as part of the investigation.
Mr Hassane, thought to be the 21-year-old who was Tasered during the joint operation by MI5 and the Met, was not injured and did not require medical treatment, police said.
BBC home affairs correspondent Danny Shaw said the dawn raid on Mr Hassane's flat in Ladbroke Grove, west London, was dramatic and involved a number of firearms officers.
Scotland Yard would not comment on where the four men were now being held.
Officials said one of them had spent time in Syria.Officials said one of them had spent time in Syria.
On Tuesday a number of homes and vehicles were searched by specialist officers in west and central London as part of the investigation.
The 21-year-old, who was Tasered during the operation, was not injured and did not require medical treatment, police said.
"I don't want to worry the people of London," Sir Bernard added. "We are here to keep them safe and we believe we are on top of things."I don't want to worry the people of London," Sir Bernard added. "We are here to keep them safe and we believe we are on top of things.
"But there are some concerns about the people we are having to arrest.""But there are some concerns about the people we are having to arrest."