“A Twitter account linked to al Qaeda in the Arabian Peninsula (AQAP) has claimed credit for an explosion that occurred early this morning in the diplomatic Hadda section of Sana’a outside the residence of the Iranian ambassador to Yemen. The timing of the attack, which occurred the week after the ambassador, Hossein Niknam, presented his credentials to Yemeni authorities, suggests that AQAP had been waiting for his arrival in the Yemeni capital. “
Source: AQAP claims bombing of Iranian ambassador’s residence in Yemen – The Long War Journal