A US school teacher could lose her job after allegedly sharing online a photo of her students with duct tape over their mouths.
The photo shows eight or nine students with the caption, "Finally found a way to get them to be quiet!!!"
The teacher, Melissa Cairns from Ohio, has until Saturday to respond to allegations by her local education board that she put the photo on her Facebook page.
Ms Cairns, a marathon runner and founder of a domestic violence awareness organisation, started work at Buchtel Community Learning Centre as part of a plan to improve her teaching skills in August.
The photo is believed to have been taken in September or October.
A colleague reportedly told a supervisor after seeing the picture online.
The school's principal then notified parents and asked Ms Cairns, who teaches maths, to remove the photo.
The teachers' union reportedly intends to request a referee to ask whether the alleged offence warrants her being fired.
Ms Cairns has been on paid leave since Saturday.