Prime Minister Andreas Papandreou filed for divorce Thursday from his American-born wife Margaret after nearly 40 years of marriage, officials said.

The couple have been living apart for several months and Papandreou, 70, is reportedly planning to marry former airline hostess Dimitra Liani, with whom he has been linked in the Greek media since 1987.Under Greek law, a couple living apart for 4 years may be granted a divorce.