Burkina Faso's political parties and civil society groups were on Sunday due to adopt a transition plan for the west African country after the ousting of veteran president Blaise Compaore.

Talks on forming a transition government began Saturday with the army at first declining to join, while Compaore -- speaking for the first time since his dramatic fall -- accused military and political opponents of jointly plotting his overthrow.

The West African regional bloc on Friday warned against sanctions on Burkina Faso after the country's president was ousted and the military took over.

The Economic Community of West African States (ECOWAS) said sanctions should not be imposed because of "the on-going regional efforts" and its continued support for the troubled nation.

Burkina Faso's political parties and civil society groups met for a second day Thursday to try to agree on a leader to head a transition government nearly a week after the ousting of president Blaise Compaore.

Stormy talks between the military, politicians and democracy groups in Ouagadougou Wednesday ended with an agreement for elections in November 2015.

The head of the party of ousted Burkina Faso president Blaise Compaore has been arrested, security sources told Agence France-Presse on Wednesday.

Assimi Kouanda was called in by military police "after making statements that can disrupt public order and had called for demonstrations," an officer told Agence France-Presse.

Three west African leaders held talks behind closed doors with Burkina Faso's new military leader Wednesday to pressure him into swiftly handing over power to a civilian government after the fall of president Blaise Compaore.

The presidents of Nigeria, Ghana and Senegal flew into Ouagadougou after Canada suspended its aid to the impoverished west African nation and other nations considered similar moves.

Burkina Faso's army wants to hand over power within two weeks, labor unions said on Tuesday, as international pressure mounted for a speedy transition after the fall of president Blaise Compaore.

Isaac Zida, the interim leader appointed by the military, made the pledge a day after African nations gave the country a fortnight to return to civilian rule or face the threat of sanctions.

Canada suspended development assistance to Burkina Faso on Tuesday after the West African country's military seized power in one of the world's poorest nations.

"Given the current climate, it is not possible to provide development assistance dollars directly to the government of Burkina Faso and ensure they are spent effectively and as intended," International Development Minister Minister Christian Paradis said in a statement.

Burkina Faso's army promised Tuesday to return power to a civilian government, an influential traditional chief said as the poor west African nation faced intense international pressure for a speedy transition following a military takeover.

Lieutenant Colonel Isaac Zida made the vow in a meeting with the Mogho Naba, the "king" of Burkina Faso's leading Mossi tribe, the latter told AFP.

The African Union has named Togo's former prime minister as special envoy to Burkina Faso following the popular uprising that toppled Blaise Compaore, a statement said Tuesday.

AU commission chief Nkosazana Dlamini-Zuma named Edem Kodjo as the pan-African bloc's special envoy late on Monday, after the AU's peace and security council gave the regime two weeks to return to civilian rule.

Burkina Faso's military promised Monday to hand power to a "consensus" leader following the popular uprising that deposed Blaise Compaore, as African nations gave the regime two weeks to return to civilian rule.

The army has stepped into a power vacuum left by Compaore, who was forced to resign last week in the wake of violent demonstrations at his attempt to extend his 27-year-rule that some have likened to the Arab Spring.