An Islamist-allied militia group in control of Libya's capital now guards the US Embassy and its residential compound, a commander said Sunday, as onlookers toured the abandoned homes of diplomats who fled the country more than a month ago. An Associated Press journalist saw holes left by small-arms and rocket fire dotting the residential compound, reminders of weeks of violence between rival militias over control of Tripoli that sparked the evacuation. A commander for the Dawn of Libya group, Moussa Abu-Zaqia, told the AP that his forces had been guarding the residential compound since last week, a day after it seized control of the capital and its international airport after weeks of fighting with a rival militia. Abu-Zaqia said the rival militia from Zintan was in the compound before his troops took it over. A senior State Department official, speaking on condition of anonymity because the official was not authorized to discuss the issue publicly, said the department is seeking additional information but believed the embassy compound "remains secure."