At least seven people are reported to have died and some 140 have been hurt after soldiers fired on crowds opposing a military takeover in Sudan.
Protestors took to the streets after the armed forces dissolved civilian rule, arrested political leaders and called a state of emergency on Monday.
Troops are reported to have been going house to house in the capital Khartoum arresting local protest organisers.
The coup has been condemned around the world, and the US halted $700m in aid.