YUGOSLAVS TRY FIFTY AS SPIES, TERRORISTS

LONDON, July 12 (AP) - Fifty men who have been charged with being spies and terrorists aided by "agents of the Vatican" were brought to trial today at Zagreb, Yugoslavia, according to a broadcast by Tanjug, the official Yugoslav news service, recorded here. The trial was said to have begun before a court of five judges.

According to the broadcast, "the priest Juredis and the Vatican confidence man Draganovic," working mostly in Italy, attempted to unite political fugitives who had escaped from Yugoslavia when marshal Tito's Communist regime was set up.

[The broadcast did not further identify Juredis. The Interior Ministry of the Yugooslav state of Croatia said yesterday that Dr. Krunoslav Draganovic, whom it called a "priest attached to the Vatican," Was one of the alleged spies.

[An authoritative Vatican source denied that Dr. Draganovic had been involved in sending spies into Yugoslavia.]

It was charged that the fugitives had formed a "Croat State Committee" that had sent at least ninety-five agents into Yugoslavia to work against the Croat People's Republic.

The resistance group organized abroad was aided by a foreign intelligence service as well as by "Vatican agents," the broadcast quoted the prosecutor as having said. The intelligence services was not identified.