Tehran(AP)—Rebellious Kurdish tribesmen ambushed government troops, killing about 20 and wounding 30, as the dissident minority renewed its sporadic battle for autonomy in the remote, moun- tainous region of Kurdistan, news reports said yesterday. Ten thousand men, women and chil- dren from the city of Sanandaj were re ported pushing on with a 50-mile protest trek to Marivan, a town abandoned by its 30,000 residents in anger over the arrival of militia units to take over security. The Mal-ivan Kurds want to run their own security. Reporters said some of Marivan's townspeople set up tent cities on the out- skirt_s of the town, 300 miles west of Teh- ran, and others took refuge in the moun- tains. The Sanandaj Kurds reportedly launched the march to protest the alleged seizure of Kurdish hostages by govern- ment forces in recent fighting near Mad- van. A government mediation team, sent to Marivan to negotiate with the rebels, has returned to Tehran after talks collapsed. A member of the team described the Kurdish demands as “uncompromising.” Since the Islamic revolutionary victory in un February, rebels seeking auton- o Thr the Kurdish region of western an have waged an on-and-off war against government forces. The government sent reinforcements and annored personnel carriers by heli- copter to Marivan's military compound, a reporter said, and Thursday, troops in the compou F ed mortar barrages at sus- pected concentrations . sur- roundi bills. He said oáe was killed and several were wound The same day, the government's revo- lutionary militiamen, backed by units of the Army's 64th Division from Orumiyeh in the north, conducted mopping-up opera- tions trying to open roads to the Iraqi bor- der. Kurds ambushed one unit, killing about 20 men and wounding 30, and seized a three-quarter-ton army truck, the reports said. Reports from the remote region said ad moved troops to its border with It appeared that Iranian government forces would attempt to force the rebel- lious Kurds to the frontier, up against the stronger Iraqi force, possibly cutting of f any escape route. Kurds, a semi-nomadic people, also live in Turkey, Syria, the Soviet Union and Iraq, where for years they have struggled for independence from the Baghdad gov- ernment. Jamshid Hagliu, governor-general of western Iran's West Azerbaijan province, said that between 50 and 60 railway work- cr5 had been taken hostage by Kurdish tribesmen. of this, the railway link be- tween and Turkey has been practi- cally ed,” state radio quoted Mr. Haghu as saying. has closed two crossings on its her er with Turkey in areas where fight- ing was taking place, official sources in Turkey said yesterday. The border point of Esendere in Hak- kari province and the railroad crossing at Kapikoy in Van province were closed to traffic late last week, the sources said. The only crossing on the border still open was Gurbulak in Agri province, they said. Kurds reportedly ambush government troops in Iran The Sue ( 1837-5 985); Jul 29, 1979; PruQuesl Hisluricot Newspupers: Buttirsure Sun, The (1837-1986) pg. A2 Kurds reportedly ambush government troops in I!a i The reporter said the Kurds were keep- ing government forces off balance with nightly raids, enabling the rebels to main- tain control of the roads leading west to the Iraqi border. Reproduced with permission of the copyright owner. Farther reproduction prohibited without permission.