Sudan police clash with demonstrators in fresh protests Sudan security forces deploy in large numbers in Khartoum, twin city in anticipation of fresh protests against al-Bashir

CAIRO -- Sudanese police clashed with demonstrators in and around the capital Khartoum on Sunday, after they deployed in large numbers in anticipation of fresh protests calling on longtime ruler Omar al-Bashir to step down, activists said.

Video clips circulating online showed hundreds of security forces in all-terrain vehicles in Khartoum and its twin city Omdurman, a traditional hotbed of dissent that saw hours of pitched battles between police and protesters last week. Live video feeds on social media showed hundreds marching in the area, calling for the fall of al-Bashir.

Activists said that security forces fired tear gas at them, to which some demonstrators responded by throwing stones. Others barricaded the streets to block the police from entering their neighborhoods, they added.

Sunday's protests come amid a series of strikes, already underway or planned for this week, by professional unions, including doctors, teachers, lawyers and pharmacists. Demonstrations are also expected in other cities on Sunday.

Al-Bashir, who seized power in a military coup nearly 30 years ago, insists there will be no change of leadership except through the ballot box. Already one of the longest serving leaders in the region, he is expected to run for a new term in office in elections next year.

An Islamist wanted for genocide by the International Criminal Court, al-Bashir has repeatedly warned that the protests could plunge Sudan into the kind of chaos convulsing other countries in the region.

Speaking at a rally in the southern White Nile State, al-Bashir remained defiant, describing his opponents as anti-Islamic, and blaming Sudan's ills on an international conspiracy.

"Sudan is stronger than the mountains," and can overcome its troubles, he said, whipping up a crowd of thousands of supporters.

The protests erupted on Dec. 19, initially over price hikes and shortages, but soon shifted to calling on the president to step down. Rights groups last week said at least 40 people have been killed in the protests, while the government has acknowledged 24 deaths.

Activists say three protesters, including a doctor and a child, were killed in Thursday's clashes, but a police spokesman said the next day that only two were killed. He denied that security forces used live ammunition. Five doctors have died in the protests, according to the independent physicians union.

Although participants have so far been in the hundreds or low thousands, the continuing protests and strikes pose a challenge to al-Bashir's rule. The absence of explicit support by Sudan's Arab allies has made al-Bashir's position even more tenuous.

However, the protests show a lack of clear leadership and their continuation could invite another military takeover. Union leaders say they want a transitional government of technocrats followed by free elections.

Al-Bashir's position was further weakened when a senior cleric revealed that he and fellow clerics have implicitly suggested to the Sudanese leader in a meeting that he step down, arguing that Islam takes precedence over individuals.

In a surprise disclosure in a Friday sermon, Sheikh Abdul-Hay Youssef said the clerics presented al-Bashir with a list of demands, including an end to corruption, bringing to justice anyone found responsible for the latest economic crisis and an end to the killing of protesters, which the Sudanese leader has sought to justify on religious grounds.