Students protesting against higher tuition fees and public spending cuts in Britain, have clashed with police in London and Manchester.
The BBC reports thousands attended a joint rally in Manchester organised by students and trade unions on Saturday.
Six people were arrested in disturbances when a group broke away from the main body of protesters.
In central London, thousands of students staged a noisy march which ended in a rally in Westminster. Some then left to join hundreds of demonstrators outside the Egyptian embassy.
Universities and Science Minister David Willetts said:
"The government respects the right of all citizens to engage in lawful and peaceful protest.
"Our student and university finance reforms are fairer than the present system and affordable for the nation."