Nine Kurdish guerrillas and a police officer were killed Saturday in a clash in the southeastern province of Diyarbakir, the semi-official Anatolia News Agency reported. The guerrillas were believed to be members of the outlawed Kurdish Labor Party, which wants to set up a Marxist state in parts of eastern and southeastern Turkey, Anatolia reported. It did not elaborate on the clash. More than 900 civilians and security personnel and about the same number of insurgents have been killed since the rebels started hit-and-run attacks in 1984, official reports say. Ethnic Kurds make up about one-fifth of Turkey's population of 52 million.