UK TerrorismToday Britain’s government raised the UK terror threat level to “severe.”  It’s the fourth-highest of five potential threat levels. According to the U.K. government, it means an attack is “highly likely.” But there is no intelligence to suggest an attack is imminent.

The threat level was raised in general because of the deteriorating situation in Iraq and Syria, where extremist militants from the group calling itself the Islamic State (also ISIS or ISIL) however, that there was no specific threat to Britain that caused the raise in the terror level.

The increase in the threat level is related to developments in Syria and Iraq where terrorist groups are planning attacks against the West. Some of these plots are likely to involve foreign fighters who have travelled there from the UK and Europe to take part in those conflicts.

Prime Minister David Cameron is making a statement on the increase in the terror threat level at 9:45 a.m. ET.
http://www.theguardian.com/uk-news/2014/aug/29/uk-terror-threat-raised-severe