NEW : Crude bombs , tear gas and gunfire rock Dhaka . NEW : At least four people were killed in Sunday 's protests . NEW : The government calls on protesters to leave ; leaders say they 're staying . Score: 6
NEW : Crude bombs , tear gas and gunfire rock Dhaka . NEW : At least four people were killed in Sunday 's protests . NEW : The government calls on protesters to leave ; leaders say they 're staying . The Islamists want Bangladesh to adopt laws against blasphemy , along with other demands .