Barça implements system to maintain Camp Nou airspace security.

An unindentified flying object, likely an observation balloon, entered Poland's airspace from the direction of Belarus, the Polish Defense Ministry said. A search for the object was underway.

The West African economic bloc, ECOWAS, has given coup leaders in Niger one week to cede power and reinstate the country's democratically elected president, Mohamed Bazoum — or face possible military intervention.

Tensions between Poland and Belarus have increased following reports that two helicopters violated the NATO country's airspace. Belarus has denied any border violation.

Defense chiefs from the Economic Community of West African States (ECOWAS) say they finalized a plan for a potential military intervention in Niger. The regional bloc has given coup leaders in Niger until Sunday to reinstate President Mohamed Bazoum.

Niger closed its airspace on Sunday until further notice, citing the threat of military intervention from the West African regional bloc, after leaders of its recent coup rejected a deadline to reinstate the country’s ousted president.

The military junta said it shuttered the country's airspace because of the "threat of intervention." An ECOWAS demand to restore President Bazoum or risk military action has now expired.

Pressure mounts on Niger's military junta to re-install the democratic government. The US says there is still time for a diplomatic exit to the crisis, as ECOWAS threatens military intervention to restore President Bazoum to power. Meanwhile, France slashes millions in aid to Burkina Faso in response to its support for Niger's junta. And lastly, Senegal's most prominent opposition leader is hospitalised, following a hunger strike in prison. Ousmane Sonko began refusing food late last month in protest at what he says are politically motivated charges.

In Niger, the country's new military rulers refused to allow a West African peace mission to visit from neighboring Nigeria. Niger's junta appears unwilling to back down, even as other countries impose sanctions and trade restrictions.

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Niger's coup leaders say they will prosecute deposed President Mohamed Bazoum for "high treason." Earlier, they reportedly said they were willing to negotiate with the West African bloc ECOWAS.

Niger's junta on Tuesday said that it was open to talks to resolve a regional crisis caused by last month's military coup, while Russia and the United States called for a peaceful resolution.