* President Roch Kabore ousted by soldiers on Monday
* Coup condemned by international powers but some at home glad
* Many want end to poverty and violence fuelled by Islamists (Adds borders reopening, demonstration colour, quotes)
By Anne Mimault and Thiam Ndiaga
OUAGADOUGOU, Jan 25 (Reuters) - More than 1,000 people gathered in Burkina Faso's capital Ouagadougou on Tuesday in support of a military coup that a day earlier ousted President Roch Kabore, dissolved the government and suspended the constitution.
The fifth coup in West and Central Africa this decade comes amid an increasingly bloody Islamist insurgency that has killed thousands and displaced millions across the Sahel region, eroding faith in democratic leaders to combat the problem.
On Monday, soldiers announced they had overthrown Kabore https://www.reuters.com/world/africa/burkina-faso-president-kabore-detained-military-camp-sources-tell-reuters-2022-01-24, who came to power in 2015, a move condemned internationally but welcomed by some at home tired of widespread insecurity, alleged corruption and deep poverty.
The putchists, called the Patriotic Movement for Safeguard and Restoration (MPSR), presented Kabore with a hand-written resignation letter on Monday, which he signed, according to numerous sources who shared the letter with Reuters and verified its authenticity.
"In the interests of the nation, following events that took place since yesterday, I have decided to resign from my role as president of Burkina Faso," said the letter.
An MPSR statement read on television said it was re-opening borders a day after closing them.
Kabore's whereabouts were unknown on Tuesday. The MPSR has said he was detained at a secure location. Vehicles belonging to the presidential fleet were seen riddled with bullets near Kabore's residence the day before.
France's President Emmanuel Macron said the situation had appeared calm in the last few hours and that he had been informed Kabore was "in good health" and not being threatened.
The United States, the United Nations, regional political bloc ECOWAS and the G5 group of Sahel nations all condemned the coup.
ECOWAS said in a statement on Tuesday that Kabore was forced to resign under "threat, intimidation and pressure" from the military, and it will hold an emergency summit to discuss a response in the coming days.
ECOWAS has already slapped broad sanctions on neighbouring Mali where there have been two military coups since August 2020.
A military-led interim government said this month that it planned to hold on to power until December 2025 - nearly four years after it initially agreed to hold democratic elections - prompting ECOWAS to close borders with Mali and cut it off from financial markets.
Armies have also staged coups in Guinea and Chad in the last year, raising worries about a return to the latter stages of the last century when frequent putches across West and Central Africa saw the region dubbed "The Coup Belt".
'THIS IS WHAT WE WANT'
A crowd gathered in Ouagadougou's national square to play live music, blow horns and dance. A Reuters reporter saw a group burning a French flag, a sign of growing frustration about the military role the former colonial power still plays in the region.
"ECOWAS doesn't care about us, and the international community only wants to condemn," said one member of the crowd, Armel Ouedraogo, in reference to West Africa's regional political bloc.
"This is what we want."
A Reuters reporter saw Russian flags dotting the crowd, and several demonstrators called on Moscow to replace France in the fight against jihadists.
After nine years, France is in the process of drawing down its force of thousands of soldiers in the region.
Russian military trainers and contractors are already operating in Mali, much to the consternation of France and its western allies.
"Today the Burkinabe people are asking for Russia's support to accompany them in this fierce struggle that has been imposed on us," said Armel Kabore, who was also among those celebrating.
Attacks on civilians and the armed forces, including the killing of 49 gendarmes at a security post in November, prompted violent protests calling for Kabore's ouster.
The putchists, who are led by a lieutenant colonel called Paul-Henri Sandaogo Damiba, said Kabore failed to unite the country or ensure security.
The MPSR said it would propose a calendar for a return to constitutional order "within a reasonable time frame".
(Reporting by Anne Mimault and Thiam Ndiaga Additional reporting by Ange Aboa in Abidjan; Additional reporting by Elizabeth Pineau in Paris; Writing by Cooper Inveen and Edward McAllister; Editing by Andrew Cawthorne and Raissa Kasolowsky)
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