BREAKING:Gunmen Kill Iraqi Vice President's Sister

(MSNBC)BAGHDAD, Iraq - Gunmen killed the sister of Iraqi Vice President Tariq al-Hashimi in Baghdad on Thursday, Interior Ministry sources and two officials in his political party told Reuters.

They said Mayson Ahmed Bakir al-Hashimi was gunned down in the Hay al-Ilaam section of Baghdad. The killing comes after one of his brothers was killed on April 13. Al-Hashimi, a Sunni Arab, was appointed on Saturday in efforts to form a unity government.

The brother of another leading Sunni politician, Saleh al-Mutlak, was found dead earlier this month after he was kidnapped.