More peaceful demonstrations will go ahead as planned on Thursday, pro-democracy activists say.
An anti-government movement is planning new protests in Guinea after its leaders said at least seven people were killed and 32 wounded during demonstrations in the capital, Conakry, and other cities.
Police in riot gear cracked down on demonstrators who threw rocks and burned tyres on Wednesday during the latest in a series of protests against the military government, which seized power in 2021.
Small-scale protests also took place in Nzerekore, a city in the southeast, and in the central town of Dabola.
Opposition parties and civil society groups said in a joint statement that at least seven people had been shot dead and 32 others suffered gunshot wounds.
They said 56 arrests were reported and a second day of peaceful demonstrations would go ahead as planned on Thursday.
The military rulers have not responded to the allegations.
There have been several protests in Guinea since the army took power, some of which have turned deadly after clashes with heavy-handed security forces.
The military government is one of several in West Africa that took power in a string of coups since 2020 and are now dragging their feet on promises of elections.
Authorities in Guinea proposed a two-year transition to democracy in October, down from a three-year timeline earlier rejected by the regional political and economic bloc, the Economic Community of West African States.