Iraqi-American Christians are to gather tonight in a church and a community center to remember the victims of a terrorist attack in a church in Baghdad. A special mass is to be held at 5 p.m. for the "martyrs of Our Lady of Salvation Church" in Iraq, at St. Mary's Assyrian Church in Warren on 14 Mile, said the church in a news release. It is to be followed by a mourning rally at Ryan Palace, also on 14 Mile in Warren. Michigan has a sizeable population of Iraqi-American Christians, according to U.S. Census figures. They include Chaldeans, Assyrians and Syriacs. At least 58 people were killed when an al-Qaida affiliate in Iraq stormed the Baghdad church, took hostages, and started killing them. It was the worst single-day attack on Christians in Iraq since the start of the 2003 war. Since the start of the war, thousands of Christians have fled Iraq and many fear the decline of Christianity in Muslim-majority Iraq.