Islamic activists outside the Bangladeshi capital, Dhaka, have clashed with police in a protest about a recent constitutional amendment.

The protesters called a general strike for Sunday, leaving business and schools across the South Asian nation closed.

The activists want the words “absolute faith and trust in Allah” returned to the constitution.

The Bangladesh government made changes last month to restore the secular character of the original national constitution. However, Islam was retained as the state religion.

Officials say about 50 people were injured in the clashes.