From Reuters:
Interesting to see who claims responsibility - IS or AQ?
Gunmen attack Iran parliament and mausoleum, killing at least one: state media
Armed men launched two attacks in Iran on Wednesday morning, killing a guard at the parliament in central Tehran and wounding several people at the Mausoleum of Ayatollah Khomeini a few kilometers south of the city, state media reported.
http://www.reuters.com/article/us-iran-security-idUSKBN18Y0HV?il=0
Interesting to see who claims responsibility - IS or AQ?