STOCKHOLM, Sept. 21 (Xinhua) -- Swedish Secret Services (Sapo) are assessing the threat of a potential terror attack targeting Stockholm, after a rumor of an attack circulated on social media during the night, public television news broadcaster SVT reported Thursday.
Sapo would not comment on the actual threat but emphasized similar threats were not unusual.
"About every other day we get this kind of information," Nina Odermalm-Schei, a spokesperson for Sapo, told SVT.
"We receive about 6,000 threats a month regarding terrorism. When we get this kind of threat we find out more by gathering and assessing information to gauge the level of truth to it," she said, adding that the unusual component of this threat is that it spread in social media.
The current threat level in Sweden remains at three on a scale of one to five, where five is the most serious threat level.
"Listen to what the authorities say and be extra watchful. If you observe anything suspicious you should report it to the police," Justice Minister Morgan Johansson said.
