The International Atomic Energy Agency (IAEA) will provide diagnostic kits, equipment and training to countries that need help tackling the worldwide spread of COVID-19.
Fourteen countries in Africa, Asia, Latin America and the Caribbean have asked for assistance so far.
The nuclear-based detection technique can help diagnose coronavirus accurately within hours in humans, as well as in animals that may also host it.
The first training course will take place in Austria in two weeks’ time and for international medical and veterinary experts from Cambodia, Republic of Congo, Cote d´Ivoire, Ethiopia, Kenya, Madagascar, Malaysia, Mongolia, Philippines, Sri Lanka, Thailand and Vietnam.
Additional regional courses will be organised for other countries, including from Latin America and the Caribbean.
The US Federal Aviation Administration lifted emergency flight restrictions that had barred all flights to and from Texas' El Paso International Airport, which borders Mexico, after warning flights could be cancelled for 10 days, citing special security reasons.
Ten people, including the shooter, are dead after an assailant opened fire at a high school in western Canada on Tuesday in one of the country's deadliest mass casualty events in recent history.
Tropical cyclone Gezani slammed into Madagascar's eastern coastline, killing nine people in the Indian Ocean island nation's second-largest city, as walls of wind and rain left a trail of devastation, authorities said on Wednesday.
A Russian drone strike killed four people, including three small children and their father, in a town west of Ukraine's second-largest city of Kharkiv, Ukrainian officials said on Wednesday.
Cambodia has closed almost 200 scam centres in a crackdown on transnational fraud in recent weeks, with authorities providing rare access to one centre in a bid to show they are tackling the sophisticated operations.