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| Version 1 | Version 2 |
|---|---|
| UK terror threat level 'severe' | UK terror threat level 'severe' |
| (30 minutes later) | |
| The UK terror threat level is being raised from "substantial" to "severe", Home Secretary Alan Johnson has said. | The UK terror threat level is being raised from "substantial" to "severe", Home Secretary Alan Johnson has said. |
| The new alert level means a terrorist attack is considered "highly likely". It had stood at substantial since July. | The new alert level means a terrorist attack is considered "highly likely". It had stood at substantial since July. |
| It is in response to the perceived increased threat from international terrorism following the failed Detroit airliner bombing on Christmas Day. | It is in response to the perceived increased threat from international terrorism following the failed Detroit airliner bombing on Christmas Day. |
| Mr Johnson stressed there was no intelligence to suggest a terrorist attack was imminent. | Mr Johnson stressed there was no intelligence to suggest a terrorist attack was imminent. |
| The decision to raise the threat level was made by the UK's Joint Terrorism Analysis Centre (JTAC). | The decision to raise the threat level was made by the UK's Joint Terrorism Analysis Centre (JTAC). |
| THREAT LEVEL SYSTEM Low - attack is unlikelyModerate - attack is possible, but not likelySubstantial - attack is a strong possibilitySevere - attack is highly likelyCritical - attack is expected imminently | THREAT LEVEL SYSTEM Low - attack is unlikelyModerate - attack is possible, but not likelySubstantial - attack is a strong possibilitySevere - attack is highly likelyCritical - attack is expected imminently |
| Mr Johnson said JTAC kept the threat level under constant review, making its judgments based on a broad range of factors, including the intent and capabilities of international terrorist groups in the UK and overseas. | Mr Johnson said JTAC kept the threat level under constant review, making its judgments based on a broad range of factors, including the intent and capabilities of international terrorist groups in the UK and overseas. |
| He said: "We still face a real and serious threat to the UK from international terrorism, so I would urge the public to remain vigilant and carry on reporting suspicious events to the appropriate authorities and to support the police and security services in their continuing efforts to discover, track and disrupt terrorist activity." | He said: "We still face a real and serious threat to the UK from international terrorism, so I would urge the public to remain vigilant and carry on reporting suspicious events to the appropriate authorities and to support the police and security services in their continuing efforts to discover, track and disrupt terrorist activity." |
| Mr Johnson said the new level meant people needed to be "more aware". | Mr Johnson said the new level meant people needed to be "more aware". |
| The decision to raise the threat level was not specifically linked to the failed Christmas Day bomb attack on a plane bound for Detroit or to any other incident, he said. | The decision to raise the threat level was not specifically linked to the failed Christmas Day bomb attack on a plane bound for Detroit or to any other incident, he said. |
| He said the government would not reveal specific intelligence details. | He said the government would not reveal specific intelligence details. |
| The UK had not reached the highest threat level of "critical", which would mean an attack was imminent. | The UK had not reached the highest threat level of "critical", which would mean an attack was imminent. |
| Move mirrors US | |
| He added: "We have a very adept and very focused counter terrorism facility in this country, which consists of many police officers as well as security officers, so the public should be reassured by that." | He added: "We have a very adept and very focused counter terrorism facility in this country, which consists of many police officers as well as security officers, so the public should be reassured by that." |
| The US Department of Homeland Security said the move meant the UK would be on a similar level of alert to America. | |
| In a statement it said: "The UK is raising their measures to effectively where we are with the airport security measures that we have taken and announced over the last few weeks. | |
| "We have enhanced our security measures and communicated specific information to industry, law enforcement and the American people." | |
| BBC home affairs correspondent Daniel Sandford said the perceived threat from Yemen since the Christmas day attempted attack may be one factor behind the decision to raise the threat level. | |
| But he added that there might be additional factors which have not been revealed by the government. | |
| Prime Minister Gordon Brown announced on Wednesday that direct flights between Yemen and the UK were to be suspended over fears about their safety. | |
| There are five levels of terror threat, ranging from low - meaning an attack is unlikely - to critical - when an attack is expected imminently. Severe is the second highest level on the scale. | There are five levels of terror threat, ranging from low - meaning an attack is unlikely - to critical - when an attack is expected imminently. Severe is the second highest level on the scale. |