'Unholy alliance' of Islamists threatens Sweden - spy chief

STOCKHOLM (Reuters) - Sweden, once cited by Osama bin Laden as the kind of country al Qaeda did not attack, is facing a rising threat from Islamist militants because of the crises in Iraq and Syria, its spy chief said in an interview on Friday.

Anders Thornberg told Reuters the number of Swedes travelling to fight in those countries had tripled in the past year, and record immigration to the Nordic country was making it vulnerable to infiltrators from militant groups.