Seven Sudanese military officers sent to jail after being convicted over a coup attempt walked free on Wednesday.

Seven Sudanese military officers sent to jail after being convicted over a coup attempt walked free on Wednesday, just days after they were sentenced.

The seven converged on the home of Brigadier Mohammad Ibrahim, who had received the heaviest sentence of five years in prison.

It was not immediately clear why they were freed early but they had requested a presidential pardon on April 9, two days after their sentencing.

The officers could potentially have been executed for the case which analysts have said reflected political turmoil within the 24-year regime of President Omar al-Bashir, who himself took power in a coup.

A military court ordered the soldiers dismissed from the military and issued sentences ranging from two to five years in prison for the plot.

They asked Bashir to pardon them as "political prisoners" under a wide-ranging amnesty which he announced early this month, the army said.

"Now we are free and the case is finished for us," Ibrahim said in brief comments to reporters.