There is a general threat from terrorism. Attacks could be indiscriminate, including in places frequented by expatriates and foreign travellers.
On 11 December 2010, two bombs were detonated in a busy shopping area of central Stockholm. The first device consisted of gas canisters in a car and injured two passers-by. The second was a suicide device, which killed the bomber.
There is considered to be a heightened threat of terrorist attack globally against UK interests and British nationals, from groups or individuals motivated by the conflict in Iraq and Syria. You should be vigilant at this time.