Burkina Faso's army has pledged to put in place a unity government to manage a political transition after a popular uprising forced long-ruling president Blaise Compaore to quit.
"A transition body will be put in place with all the components to be adopted by a broad consensus," according to a statement read out by an aide of Lieutenant Colonel Isaac Zida, who was named the country's interim leader by the army.
The European Union called on the military to respect the fundamental rights of the people, including to peaceful protest, after troops fired tear gas to disperse protesters in the capital Ouagadougou denouncing a military power grab.
The United States has also condemned the "Burkinabe military's attempt to impose its will on the people of Burkina Faso."
Mr Compaore was forced to resign as plans to extend his 27-year rule exploded into violent demonstrations that saw parliament set ablaze and hundreds of thousands take to the streets.
"We urge civilian leadership to be guided by the spirit of the constitution of Burkina Faso and to move immediately towards free and fair presidential elections," US State Department spokeswoman Jen Psaki said.
Under Burkina Faso's constitution, the head of the National Assembly should take office if the president resigns, with a mandate to organise elections within 90 days.
However the army has dissolved the legislature and suspended the constitution.
Lt Col Zida, the second in command of the presidential guard, said he had assumed "the responsibilities of head of the transition and of head of state" to ensure a "smooth democratic transition".
"We regret the loss of life this week in Burkina Faso and call on all parties to avoid further violence," Ms Psaki said.
The UN envoy for west Africa, Mohamed Ibn Chambas, also called for a civilian transition.
He threatened sanctions if the military holds on to power in the west African country.
The former French colony is preparing for another day of mass protests as opposition and civil society leaders challenged moves by the military to step into power.
Opposition figures have said around 30 people were killed in violence on Thursday.
Gunfire rang out at the headquarters of Burkina Faso's state-run RTB Television as the broadcaster went off air.
The shots were fired shortly after the arrival of Sara Sereme, the head of opposition party PDC, and about 100 of her supporters chanting "Sarah President".
An army general was also present at the studio along with supporters, and witnesses said he was planning to make a declaration on the television before it was shut down.
One person in the crowd was killed, an army spokesman said, calling for calm.
Shortly afterwards, presidential guards moved in to prevent access to Ouagadougou's central Place de la Nation, the site of violent demonstrations against Mr Compaore last week in which three people were killed and the parliament set ablaze.
