Europe’s leaders gathered in Copenhagen this week after a wave of drone incursions above airports and sensitive sites across the continent.

Denmark has accused the Russian navy of targeting its military ships and helicopters in Danish waters, including pointing weapons at them. It also accused the Russian navy of putting its warships on a “collision course” with Danish vessels monitoring them through the waters.

Russian President Vladimir Putin called Charlie Kirk's assassination a sign of deep division in American society while offering his condolences.

Many Danes are rethinking their personal security, and stocking up on emergency supplies, amid unidentified drone appearances. Denmark's leaders warn that Russia is waging a "hybrid war."

"NATO must keep ready to act, but not to overreact," Jean-Paul Paloméros, the former head of NATO's ACT, told Newsweek.

We’ve seen videos being posted today that appear to show another attack on a Russian oil refinery involving what looks like an unmanned aerial vehicle (UAV) or drone. We’ve located these videos to the city of Orsk, near Russia’s border with Kazakhstan, which is well over 1,000km (620 miles) from Ukraine.

Taiwan imported $1.3 billion worth of the petroleum product naphtha from Russia in the first half of this year, more than from any other country, according to a new report.

On Friday and Saturday, the USGS recorded 11 earthquakes off the coast of Russia's Kamchatka region. The strongest earthquake was recorded as a 6.1 magnitude that struck about 112 miles, southeast of Vilyuchinsk, Russia, on October 3. It was at a depth of about 11 miles, the USGS map shows.