NEW : Monday : Bodies in streets of Haiti ; some collapsed . NEW : U.N. regional headquarters reportedly collapsed ; some unaccounted for . Earthquake struck just off coast of capital Port - au - Prince on Tuesday . Americans seeking info about earthquakes in Haiti can call State Department at 888 - 407 - 1 .
NEW : Witnesses : Bodies in streets of capital ; buildings collapsed . NEW : U.N. mission headquarters reportedly collapsed ; some unaccounted for . Earthquake struck just off coast of capital Port-au-Prince on Tuesday . Americans seeking info about relatives in Haiti can call State Department at 888-407-4747 .