"The Abdullah Azzam brigades - the Hussein bin Ali cells - may they please God - are behind the attack on the Iranian embassy in Beirut," Sheikh Sirajeddine Zuraiqat, the group's religious guide, posted on Twitter.
Iranian cultural attaché in Lebanon Ebrahim Ansari was killed in Tuesday bombing near Iranian embassy in Beirut, Lebanon. Totally 23 people were killed and 146 were wounded as a result of the blasts.