Tens of thousands of people took to the streets to join anti-war demonstrations across Europe on Sunday as Russia continued its deadly assault on Ukraine, bombarding major cities and intensifying a humanitarian crisis that is having reverberating effects worldwide.\r\n\r\nIn addition to protests in Berlin, London, Warsaw, and Madrid—where participants carried signs and banners that read \u0022Stop the War\u0022 and \u0022Peace and Solidarity for the People in Ukraine\u0022—demonstrations sprang up on a smaller scale in occupied Ukrainian cities and in Moscow, despite the threat of arrest and police brutality.\r\n\r\nThousands of Russian anti-war protesters have been detained and abused by law enforcement since the invasion of Ukraine began on February 24, according to human rights organizations.\r\n\r\n\r\n\r\nThe demonstrations Sunday came amid some signs of diplomatic progress in talks between Russia and Ukraine, which have been negotiating on the border of Belarus since the early days of the invasion.\r\n\r\nMykhailo Podolyak, an adviser to Ukrainian President Volodymyr Zelenskyy, said Sunday that Russia is \u0022beginning to talk constructively\u0022 and predicted that \u0022we will achieve some results literally in a matter of days.\u0022\r\n\r\nLeonid Slutsky, a Russian delegate to the negotiations with Ukraine, echoed his counterpart\u0026#039;s assessment.\r\n\r\n\u0022According to my personal expectations, this progress may grow in the coming days into a joint position of both delegations, into documents for signing,\u0022 Slutsky told reporters Sunday, without offering specifics on what an agreement would entail.\r\n\r\nSeemingly positive developments in diplomatic talks came as Russia showed no sign of easing its attack, which has forced more than 2.5 million people to flee Ukraine and internally displaced millions more.\r\n\r\nZelenskyy said Saturday that around 125,000 people have been able to escape through humanitarian corridors established in besieged cities, but hundreds of thousands remain trapped in Mariupol and other areas facing heavy shelling from Russian forces.\r\n\r\nEarly Sunday morning, Russia bombed a Ukrainian military facility located just 22 miles from the border of Poland, a NATO member. The airstrike, believed to be Russia\u0026#039;s westernmost attack on Ukraine thus far, killed dozens of people and wounded more than 130 others.\r\n\r\nThe Associated Press reported that \u0022continued fighting on multiple fronts heaped further misery on the country Sunday and provoked renewed international outrage.\u0022\r\n\r\nBrent Renaud, an American journalist who had previously contributed to the New York Times, was killed by Russian forces in the town of Irpin, Ukrainian authorities said Sunday. A second journalist who was traveling with Renaud was reportedly injured.\r\n\r\n\u0022We are shocked and saddened to learn of the death of U.S. journalist Brent Renaud in Ukraine,\u0022 Carlos Martinez de la Serna of the Committee to Protect Journalists said in a statement. \u0022This kind of attack is totally unacceptable, and is a violation of international law. Russian forces in Ukraine must stop all violence against journalists and other civilians at once, and whoever killed Renaud should be held to account.\u0022\r\n\r\nAccording to the United Nations, at least 549 civilians have been killed and nearly 1,000 have been wounded since Russia invaded Ukraine—estimates that are believed to be significant undercounts.\r\n\r\nLocal Ukrainian officials said Sunday that 2,187 civilians have been killed in Mariupol alone since the start of Russia\u0026#039;s attack.