The leaders of Burkina Faso's week-long coup on Friday demanded guarantees for their safety before they disarm, a senior member of the putschist presidential guard said.

"The men are categorically opposed" to disarming without the guarantees, the source said. 

People rejoiced in Burkina Faso's capital Thursday, a day after the military restored power to a civilian regime, but uncertainty hung over the fate of the elite presidential guard that staged last week's coup. 

Early signs of a return to normal in Ouagadougou after the week-long crisis included the reopening of banks and service stations, though Thursday was a public holiday.

U.N. Secretary General Ban Ki-moon welcomed Thursday the reinstatement of Burkina Faso's interim leader  Michel Kafando and transitional institutions after coup leaders stood down.

The resumption of a political process "will enable Burkina Faso to hold presidential and legislative elections in accordance with the country's constitution and transitional charter," Ban said in a statement.

General Gilbert Diendere, who last week staged a coup in Burkina Faso, on Wednesday confirmed the crisis had ended, describing the putsch he led as "the biggest mistake."

"The coup is over," Diendere told reporters just hours after the interim president he deposed resumed office.

Burkina Faso's toppled interim President Michel Kafando resumed power Wednesday after a week-long coup by renegade troops, who caved in under pressure from regional powers and former colonial ruler France.

The move came after marathon talks in the capital of regional and military heavyweight Nigeria, brokered by the ECOWAS west African regional bloc, and threats by French President Francois Hollande that the coup leaders could face sanctions if they did not hand back power.

Burkina Faso's coup leader said Tuesday he would abide by a deal reached with top African mediators, but warned his men would defend themselves if attacked after the army entered the capital.

General Gilbert Diendere, whose elite army unit freed the interim president and prime minister on Tuesday, called for troops who entered the capital Ouagadougou overnight, seeking a surrender by the putschists, to leave the city.

EU foreign affairs chief Federica Mogherini demanded on Tuesday that coup leaders in Burkina Faso lay down their arms "unconditionally" as regular army troops entered the capital and began talks on a surrender deal.

"The EU calls for every effort to be made to avoid armed clashes. It demands that the RSP (presidential guard) lay down their arms immediately," Mogherini said in a brief statement.

Normal life slowly picked up Monday in Burkina Faso's capital Ouagadougou, five days after a military coup, but protests grew against a regional proposal to end the crisis.

Troops from the guard regiment loyal to former president Blaise Compaore on September 16 detained interim president Michel Kafando and prime minister Isaac Zida, himself a former deputy commander of the unit.

Dozens of supporters of the Burkina Faso military coup on Sunday chanted slogans and wrecked furniture as they stormed a Ouagadougou hotel hosting efforts to end the country's post-putsch crisis, an AFP journalist said.

The attack came as mediators led by Senegalese President Macky Sall -- who also chairs the Economic Community of West African States (ECOWAS) -- were due to announce an exit plan Sunday morning for the landlocked west African country from the crisis triggered by Thursday's military coup.

Two African leaders resumed mediation talks in the capital of Burkina Faso on Saturday, three days after a coup that reignited violence in the troubled Sahel state.

Tensions remained high in Ouagadougou, where most shops remained shuttered after a confrontation on Friday between elite troops and protesters.