By Timour Azhari BAGHDAD (Reuters) -The U.S. embassy in Baghdad was attacked with two salvos of rockets on Friday morning but there were no casualties, an embassy spokesperson said. The attack was believed to have been carried out by Iran-aligned militias in Iraq, the spokesperson said. No group immediately claimed responsibility. It was the first reported rocket attack against the embassy since an umbrella group of Iran-aligned Shi’ite Muslim militias initiated attacks against U.S. forces on military bases in Iraq and neighbouring Syria in mid-October. The armed groups, operating under the ba…