The military junta in Niger has accused France, the former colonial power, of trying to destabilise the country.
It said a French aircraft had breached the country's airspace, which the junta had closed.
It also said French soldiers had freed captured jihadists, in order to attack military positions.
There's been no response yet from France.
Niger's elected President Mohamed Bazoum was ousted at the end of last month and the coup leaders have since resisted diplomatic attempts to resolve the crisis.
Earlier US Secretary of State Antony Blinken said he spoke to Mr Bazoum and assured him of ongoing support.
The regional bloc Ecowas, which had threatened military intervention, is due to meet on Thursday to consider its next move.
Source: BBC Africa bbc.in/3OKR0hP
