Investigators suspect the French of having paid some 327 million euros in bribes to facilitate the deals, triggering some 13 million euros in kickbacks.
Kaplan said he projects that gross domestic product will drop by an annualized rate of 35% to 40% in the second quarter and that it should start to recover in the second half of the year.
"More than 100 cases have now been confirmed. The origin and extent of the outbreak are being investigated," WHO Director-General Tedros Adhanom Ghebreyesus told a virtual press conference.
"COVID-19 is also a litmus test for democracy," said Anders Fogh Rasmussen, chairman of the Alliance of Democracies Foundation and a former NATO secretary general.
The US government is seeking to choke Venezuelan oil exports to starve the government of socialist President Nicolas Maduro of its main source of revenue.
The agencies called for a "full and safe resumption" of essential immunisation campaigns and nutrition services, following "strict precautionary measures for infection prevention".
Health ministry spokeswoman Sima Sadat Lari said 113 new fatalities took to 8,950 the total number of COVID-19 deaths since the country's outbreak began in February.
Cavusoglu and his Russian counterpart Sergei Lavrov postponed planned talks on Sunday that were to focus on Libya and Syria, countries in which they back opposing sides in separate conflicts.
It is the first time Johnson has personally taken part in the talks, which began three months ago, just weeks after Britain left the European Union after 47 years in the European project.
Johnson said a cross-government commission would examine racism and the disparities experienced by minority ethnic groups in education, health and the criminal justice system.
The warning comes after the health authorities on Friday extended prevention and sanitation guidelines to protect against the coronavirus until daily new infections drop to single digits.
The Trump administration plans to reinterpret the deal between 34 nations in order to allow US defence contractors to sell more American-made drones to various nations.
A truce brokered by Russia and rebel backer Turkey has kept Syrian and Russian warplanes out of the region's skies and has largely held since it went into effect in March.
Macron said the country would not obscure elements of its history or dismantle statues of public figures who may have advocated racist views or policies.