al-Zarqawi may be among those dead.

U.S. forces sealed off a house in the northern city of Mosul where eight suspected al-Qaida members died in a gunfight — some by their own hand to avoid capture. A U.S. official said Sunday that efforts were under way to determine if terror leader Abu Musab al-Zarqawi was among the dead. Insurgents, meanwhile, killed an American soldier and a Marine in separate attacks over the weekend, while a British soldier was killed by a roadside bomb in the south. In Washington, a U.S. official said the identities of the terror suspects killed in the Saturday raid was unknown. Asked if they could include al-Zarqawi, the official replied: "There are efforts under way to determine if he was killed." The official spoke on condition of anonymity because of the sensitivity of the information. On Saturday, police Brig. Gen. Said Ahmed al-Jubouri said the raid was launched after a tip that top al-Qaida operatives, possibly including al-Zarqawi, were in the house in the northeastern part of the city. During the intense gunbattle that followed, three insurgents detonated explosives and killed themselves to avoid capture, Iraqi officials said. Eleven Americans were wounded, the U.S. military said. Such intense resistance often suggests an attempt to defend a high-value target. American soldiers controlled the site Sunday, and residents said helicopters flew over the area throughout the day. Some residents said the tight security was reminiscent of the July 2003 operation in which Saddam Hussein's sons, Odai and Qusai, were killed in Mosul. The elusive al-Zarqawi has narrowly escaped capture in the past. U.S. forces said they nearly caught him in a February 2005 raid that recovered his computer. In May, the group said he was wounded in fighting and was taken out of the country for treatment. Within days, it reported he had returned — though there was never any independent confirmation that he was wounded.