A protester holds a sign with a hammer and a sickle symbolising the Soviet Union during a May Day (Labour Day) rally, marking International Workers' Day, in the Kadikoy district of Istanbul, on May 1, 2026. At least 370 people were arrested Friday in May 1 demonstrations in Istanbul curbed by a heavy police deployment, a lawyers' association present at the rallies said. (Photo by Ozan KOSE / AFP via Getty Images)