Graduates at a top UK university have been banned from throwing their mortarboards in the air over fears the falling hats could cause injuries.
Students at the University of Birmingham have been told they are not allowed to throw their black caps in the air in celebration because of health and safety concerns.
Those set to graduate later this summer have been told they could be ejected from the ceremony if they are seen following the tradition.
In an email, students were told: 'Throwing of caps is not to be permitted, due to health and safety.'
Speaking to student newspaper The Tab, Hannah Walker said: 'It's just surprising the uni is actively taking action against something that's traditional.
'I personally don't see the harm in it, and honestly don't think anyone will take the ban seriously.'
Gown and cap graduation rental company Ede and Ravenscroft said the ban was because a number of injuries had occurred in the past.
A spokesperson said: 'Over a number of years students have been injured by falling mortarboards.
'On a few occasions customers experienced minor injuries from falling mortarboards.
'We have therefore identified the throwing of hats as a risk to health and safety.
'As a responsible company we don't want to condone any activity which could lead to someone being injured.'