Sudan recalled its ambassador to Egypt for "consultations" after renewed tension between the two neighbors following last month's visit of Turkish President Recep Tayyip Erdogan to Khartoum.
Ties between Khartoum and Cairo deteriorated since Sudanese President Omar al-Bashir last year accused Egyptian intelligence services of supporting opposition figures fighting his troops in the country's conflict zones like Darfur.
Officials from both countries engaged in high-level diplomatic initiatives to improve their relations, but Erdogan's visit to Khartoum in December delivered a new blow to Cairo-Khartoum ties.
"Sudan has called its ambassador to Cairo, Abdelmahmoud Abdelhalim, to Khartoum for consultations," the Sudanese foreign ministry said in a brief statement without offering details.
The Egyptian foreign ministry said Sudan had informed it about recalling the ambassador, adding that Cairo was "examining" the situation.
Ties between Turkey and Egypt remained tense since the Egyptian military ousted president Mohamed Morsi in 2013, a close ally of Erdogan.
Erdogan denounced Morsi's ouster and called it a "coup."
Morsi's Muslim Brotherhood is outlawed in Egypt but members of the group have sought refuge in Turkey.
Egyptian President Abdel Fattah al-Sisi, who as then army chief ousted Morsi, accuses Turkey of interfering in his country's internal affairs.
Other reasons for the deterioration of relations between Cairo and Khartoum include the construction of Ethiopia's controversial Grand Renaissance Dam on the Nile River.
Khartoum sees the dam aiding its agricultural sector while Cairo fears it will hit its water supplies.
Source: News Agencies, Edited by website team