Danish authorities faced a “concrete and serious citizen inquiry into" how the tests are carried out at Dubai entry and exit points, the Scandinavian country's transport minister said.
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"People shouting or talking on the phone can emit up to fifty times more particles," according to the Spanish National Research Council.
The building is flanked by a school and a nursing home in Spain's capital. Residents from the latter were being evacuated shortly after the blast, according to eyewitnesses.
Around 400 people were detained during the latest protests in Belarus against President Alexander Lukashenko, a human rights group reported.
Recep Gultekin, Mikail Özen and Osama Joda helped an injured police officer when gunfire erupted.
A young girl has been pulled alive from the rubble of a collapsed building in Turkey, four days after a strong earthquake hit Turkey and Greece.
Vladimir Marugov, the owner of Meat Empire, and his partner were in a sauna when they were attacked.
The new national lockdown aims to tackle a sharp rise in infections and ease pressure on hospitals.
Jams stretched more than 430 miles (700km) in total just hours before new measures came into force.
Hundreds of Czechs are in training to become healthcare volunteers as a new wave of COVID-19 threatens to overwhelm hospitals.