State television in Sudan has said there has been a failed coup attempt.
"There has been a failed coup attempt, the people should confront it," state media reported, but did not identify the plotters.
Reports from the capital city Khartoum and nearby Omdurman say there has been intense military activity, and bridges across the River Nile have been closed.
AFP quotes a government source saying the plotters had tried to take over the state media building but "they failed".
Video on social media appears to show armoured vehicles on city streets.
The government is reported to have said measures are being taken to contain the situation.
According to Reuters, military spokesman Mohamed Al Faki Suleiman says the interrogation of suspects will soon begin.
Two years ago, the country's long-term ruler Omar al-Bashir was toppled. A power-sharing agreement then established a government involving the military, civilian representatives and protest groups.
Latest Stories
-
Real Madrid beat Sevilla to keep pressure on leaders Atletico
51 minutes -
Liverpool put six past Spurs to go four points clear
53 minutes -
Manchester United lose 3-0 at home to Bournemouth yet again
56 minutes -
CHAN 2024Q: ‘It’s still an open game’ – Didi on Ghana’s draw with Nigeria
1 hour -
CHAN 2024Q: Ghana’s Black Galaxies held by Nigeria in first-leg tie
2 hours -
Dr Nduom hopeful defunct GN bank will be restored under Mahama administration
3 hours -
Bridget Bonnie celebrates NDC Victory, champions hope for women and youth
3 hours -
Shamima Muslim urges youth to lead Ghana’s renewal at 18Plus4NDC anniversary
4 hours -
Akufo-Addo condemns post-election violence, blames NDC
4 hours -
DAMC, Free Food Company, to distribute 10,000 packs of food to street kids
5 hours -
Kwame Boafo Akuffo: Court ruling on re-collation flawed
5 hours -
Samuel Yaw Adusei: The strategist behind NDC’s electoral security in Ashanti region
6 hours -
I’m confident posterity will judge my performance well – Akufo-Addo
6 hours -
Syria’s minorities seek security as country charts new future
6 hours -
Prof. Nana Aba Appiah Amfo re-appointed as Vice-Chancellor of the University of Ghana
6 hours