NEW : first man to die lived in China in eastern China , but worked in Jiangsu province . Announcement comes Monday after the Third two other cases -- and first two deaths -- were announced . Officials are trying to find the source of the infections .
NEW : Third man to die lived in Zhejiang in eastern China , but worked in Jiangsu province . Announcement comes days after the first three other cases -- and first two deaths -- were announced . Officials are trying to find the source of the infections .