Denver schools apologizes for warning to visa teachers

FILE ART - Teachers and students wear #Red4Ed in Los Angeles. 

Denver Public Schools is apologizing for saying that teachers working on visas would be reported to the federal government if they went on strike.
The Denver Post reports that a letter sent by a district human resources employee to a school said that teachers on H or J visas who strike would be reported to immigration and State Department officials. After the letter was publicized by the Colorado People's Alliance, the school district issued an apology and a correction Thursday.
The district says it has to notify the U.S. Department of Labor if there is a strike but it doesn't notify the government of the individuals who participate in a strike. 
Unionized Denver teacher have overwhelmingly voted to strike but a walk out is on hold as the state considers whether to intervene.