A Russian passenger jet crashed in Ukraine on Tuesday, killing all 170 people aboard. The plane went down after sending an SOS message, emergency officials said. The Tupolev Tu-154 plane, en route from the Russian Black Sea resort of Anapa to St. Petersburg, disappeared from radar screens while flying over Ukraine, Emergency Situations Ministry spokeswoman Yulia Stadnikova said. Minutes later, the ministry said wreckage from the plane was found on the ground. RIA-Novosti news agency reported that the wreckage was found near the Ukrainian city of Donetsk. It said rescuers were working at the site. The plane belongs to St. Petersburg-based Pulkovo airlines, Stadnikova said. She said there were 160 passengers and 10 crew members aboard.