At around 11:30 a.m. on Friday, police responded to Henry Wise Wood High School for reports of an unknown woman smoking drugs in a washroom.

Including Monday's events, there have now been four protests in less than a week in Calgary.

Alberta's chief medical officer of health said Wednesday that an online map has been launched allowing parents and students to see which schools have had two or more COVID-19 cases where there was a risk of transmission in that setting.