Gunmen opened fire Friday on the compound of the Embassy of Oman, killing two people and wounding two others, police and hospital officials said. It was the second fatal shooting involving employees of Arab embassies in Baghdad this week. The attack occurred about 6:10 p.m. at the embassy compound in the Mansour district of western Baghdad. Two people, including an Iraqi policeman and an embassy employee, were killed and two policemen were wounded, said police Maj. Falah al-Mohammedawi. On Wednesday, a driver for the Sudanese Embassy was shot dead in the same part of the city, and last month two employees of the Moroccan Embassy were abducted on a highway in western Iraq. Al-Qaida in Iraq claimed it grabbed the Moroccans and sentenced them to death. But there is no indication the threat has been carried out. In July, al-Qaida in Iraq claimed responsibility for the kidnap-slaying of three Arab diplomats - two Algerians and one Egyptian. The terror group said it carried out the attacks to discourage Arab and Islamic countries to severe ties with the US-backed Iraqi government.