Former Ukrainian president Petro Poroshenko wins a court ruling allowing him to remain at liberty while being investigated for treason in a probe he says was cooked up by allies of his successor, President Volodymyr Zelenskiy.
The eruption of Hunga-Tonga-Hunga-Ha'apai volcano, which sits on the seismically active Pacific Ring of Fire, sent tsunami waves across the Pacific Ocean and was heard as far away as New Zealand.
