(dpa) - Alexander Solzhenitsyn, the Nobel prize winner for literature who was exiled from the Soviet Union and graphically portrayed life in Soviet labour camps, was dead at age 89, the news agency Interfax reported early Monday. The agency quoted literary circles in the Russian capital. The world famous writer and historian had not been seen in public for months. He died from the aftermath of a stroke, according to unconfirmed information. Solzhenitsyn's main work was the Gulag Archipelago in 1973, which described the years of Stalinist terror using thousands of details and individual cases. The 1970 Nobel winner has reportedly been seriously ill for months.