In a separate incident, witnesses said hundreds of demonstrators emerged from a mosque known to be affiliated to Bashir's government in Jabra neighbourhood in southern Khartoum while chanting: "The people want the fall of the regime".
In response to the demonstrations, riot police and security agents have broken up the rallies by firing live ammunition and volleys of tear gas, rights groups reported.
On Sunday, protest organisers called for demonstrations in Khartoum and other towns, including Madani, Kosti and Dongola, as part of what they have called a "Week of Uprising". The rest were killed in Khartoum's twin city of Omdurman and regions north and northeast of the capital.
Three demonstrators were killed in protests Thursday and Amnesty International accused security forces of chasing injured victims into the Omdurman hospital.
According to Human Rights Watch at least 40 people have been killed in clashes during the anti-government demonstrations.
Protests broke out in Darfur after calls for rallies there by the Sudanese Professionals' Association, which has spearheaded the demonstrations.
Rights groups say more than 1,000 people have been arrested since the protests began, including opposition leaders, activists and journalists as well as demonstrators.
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Although the immediate trigger for the protests was the increase in the price of bread, Sudan has been facing a mounting economic crisis over the past year, partially caused by an acute shortage of foreign currency.
Anti-government protests that have rocked Sudan since last month over the country's deteriorating economy have left 24 people dead, an official said on Saturday, without specifying how they died.
"Egypt fully supports the security and stability of Sudan, which is integral to Egypt's national security", President Abdel Fattah El-Sisi told an aide to Al Bashir who visited Cairo last week.
Since the secession of South Sudan in 2011, Khartoum lost three quarters of its oil revenue, crippling an economy already wracked by 20 years of U.S. sanctions.
The United States lifted 20-year-old trade sanctions on Sudan in October 2017, but many investors continue to shun a country still listed by Washington as a state sponsor of terrorism.
The crackdown has drawn worldwide criticism with Britain, Canada, Norway and the United States warning Khartoum that its actions would "have an impact" on its relations with their governments.
Al-Bashir says change could only come through the ballot box.