A college in India has been forced to issue an apology after images of students wearing cardboard boxes during an exam went viral.
Officials at Bhagat Pre-University College in the south Indian state of Karnataka later explained it was an experiment to prevent exam cheating.
The college administrator added that the boxes were optional and had the students’ consent.
"There was no compulsion of any kind. You can see in the photograph that some students were not wearing it," the administrator said. "Some who wore it removed it after 15 minutes, some after 20 minutes and we ourselves asked them to remove it after one hour."
Robot Olympics ends with humanoid's 8.64-second 100m
New NASA telescope to probe dark energy, dark matter and exoplanets
Invincible trotter Varenne, Italy's most famous horse, dies at 31
Count Binface becomes Britain's most successful comedy candidate
India's badminton world championships organisers hire monkey whisperers
