MONTREAL — Quebec’s labour tribunal has ordered McGill University to stop obstructing and interfering with a union representing full-time law professors, amid an ongoing strike over what the union says is the faculty’s right to unionize.

The tribunal found the university appears to have violated the Quebec Labour Code when its administration sent two emails to law professors criticizing the union, according to an Aug. 30 decision. The emails were sent to law faculty in the days before they voted to go on an unlimited strike coinciding with the start of classes.