The remarks by Chief of Police Lt. General Khalid Mahdi Ibrahim came a day after doctors said at least 15 people were killed by live fire during demonstrations against the Oct. 25 military takeover - the highest daily count of people killed since the military takeover.

At a press conference in Khartoum, Ibrahim insisted that police are protecting civilians and primarily use tear gas to contain violence at the protests. He repeated claims that there have also been police casualties and promised investigations into any deaths, civilian or other.

His statements contradict accounts from those at the protests and doctors who have been treating the wounded. Protest leaders in Sudan have repeatedly called on demonstrators to abide by nonviolent tactics in their attempt to halt the military takeover.

Wednesday's fatalities occurred in mostly in Khartoum's district of Bahri, and the Sudanese capital's twin city of Omdurman, according to the Sudan Doctors Committee. The deaths brought the overall death toll since the military takeover to at least 39. Hundreds have also been wounded, the committee says.

In one instance, video from the protests showed a member of the security forces raising a rifle in the direction of protesters. Blood stained the asphalt on a Khartoum road. Injured and bleeding protesters could also be seen being ferried away by cars from areas of confrontation.

The military's takeover, more than two years after a popular uprising forced the removal of longtime autocrat Omar al-Bashir and his Islamist government, has drawn international criticism. The United States, its allies and the United Nations have condemned the use of excessive force against protesters.

On Thursday, the Sudanese Professionals Association, which is part of the country's pro-democracy movement, renewed calls for a national strike. It urged people to boycott all government agencies, abstain from paying bills and taxes, and erect roadblocks on the streets. The group also urged protesters not to engage with security forces.

‘Let's work all together to paralyze public life in the face of the criminals ...’, it posted on the group's Facebook page.

Since the military takeover, mobile and internet services have been in near-complete dysfunction in Sudan - an apparent tactic to limit calls for gatherings and the spread of information. On Thursday, the Sudan's state news network announced authorities have restored communications across the country.

But NetBlocks advocacy group said Thursday that social media platforms such as Facebook, Twitter and WhatsApp could still not be accessed through mobile networks.

*This story was edited by Ahram Online