Nigerian armored vehicle manufacturer Proforce has signed an agreement with French firm AERACCESS to manufacture surveillance drones in the African nation.
A Malian army helicopter fired several rockets "close to" British members of a UN peacekeeping force in the country, the UK defence ministry and UN said.
The United States said it has "credible information" that Russia may use "chemical agents" in its offensive to take the besieged Ukrainian city of Mariupol.