World Blood Donor Day 2017: Give Blood, Give Now 2

Clashes between supporters of opposition leader Ousmane Sonko and the police have killed at least 15 people. The violence erupted after he was sentenced to two years in prison.

Taiwan is the world's leading producer of microchips - used in cell phones, cars, refrigerators and weapons. A Chinese invasion would deal a devastating blow to the global high-tech supply chain.

Recent drone attacks and the shelling of a Russian border town have forced residents to flee their homes, sowing panic and fear. The Kremlin has downplayed the raids, but experts think they reveal Putin's weaknesses.

It's hard to overstate just how pervasive and permanent plastic pollution has become, with microplastics now found in almost every corner of the world - from the bottom of the oceans, to the peaks of the Himalayas, to our own stomachs. Talks have been taking place in Paris aimed at limiting global plastic pollution - the second phase of ambitious UN negotiations with the goal of reaching a legally-binding international treaty by the end of 2024.

India has made it compulsory for cough syrup manufacturers to provide samples of their products for testing before export. But experts say this doesn't go far enough.

South Africa has invited Vladimir Putin to the BRICS summit. But with an international arrest warrant out for the Russian president, it faces arresting Putin if he comes. It's trying to avoid that at all costs.