ROME — An Italian parliamentary commission concluded "beyond any reasonable doubt" that the Soviet Union was behind the 1981 attempt to kill Pope John Paul II — a theory long alleged but never proved, according to a draft report made available Thursday.

The commission held that the pope was a danger to the Soviet bloc because of his support for the Solidarity labor movement in his native Poland. Solidarity was the first free trade union in communist eastern Europe.

The draft has no bearing on any judicial investigations, which have long been closed. If the commission approves the report in its final form, that would mark the first time an official body had blamed the Soviet Union for shooting John Paul.

The report also said a photograph shows that a Bulgarian man acquitted of involvement in the May 13, 1981, assassination attempt was in St. Peter's Square when the pontiff was shot by Mehmet Ali Agca.

The Bulgarian secret service allegedly was working for Soviet military intelligence, but the Italian court held that the evidence was insufficient to convict the Bulgarians in the plot.

Agca, a Turk, has changed his story often and investigators said it was never clear who he was working for. He initially blamed the Soviets.

The Italian commission was originally established to investigate any KGB penetration of Italy during the Cold War.

The commission president, Sen. Paolo Guzzanti, said he decided to investigate the 1981 shooting after John Paul said in his book "Memory and Identity: Conversations Between Millenniums" that "someone else planned it, someone else commissioned it." The book came out shortly before the pope's death last year.

The report must be approved by the full commission, which meets Tuesday.

By The Associated Press