Lithuania Assails Moscow in Killing of 6 : The Baltics: Parliament accuses Soviet Union of ‘aggression,’ offers reward for slayers of police, customs officials.

Horrified by the cold-blooded murders of six law enforcement officials, Lithuania on Thursday accused the Soviet Union of “aggression,” offered half a million rubles for the unmasking of the killers and warned that the patience of its people is running out.

Meeting in a closed-door emergency session in Vilnius, the Lithuanian Parliament appealed to the citizenry to refuse any future cooperation with the KGB and Soviet police and demanded that such “repressive structures” of the Soviet government be withdrawn from the republic immediately.

“The blood of innocent people has again been shed in Lithuania,” the Supreme Council declared. “We again appeal to the powerful democratic states, to all people of good faith of the world, demanding to stop the murderous actions of aggressors, and once again remind them of our peaceful struggle for freedom and independence.

“But our patience cannot be infinite,” the Parliament said. “Already now, we have no words to console the relatives of the murdered people.”

The lawmakers called on Iceland and Denmark, two countries that have been supportive of Lithuania’s efforts to assert its independence, to intervene at the U.N. Security Council to guarantee that the Baltic republic’s sovereignty is protected. They said next month’s international human rights conference in Moscow should also be postponed until the Kremlin pledges to leave Lithuania alone.

Reporters who visited the site of the Wednesday morning killings--a one-story customs post at Medininkai on Lithuania’s border with Soviet Byelorussia--said the victims were forced to lie on the floor and then shot in the head.

The killings, which took place on the final day of the Moscow summit, were disavowed by the so-called OMON units of the Soviet Interior Ministry, which have torn down or burned other customs posts erected as emblems of Lithuania’s independence. Nevertheless, OMON was considered by Lithuanians to be the prime suspect in the deadly Wednesday raid.

The Vilnius government offered the huge reward of 500,000 rubles, about $312,000 at the inflated official commercial exchange rate, for information enabling police to identify the perpetrators of the “massacre.” Soviet President Mikhail S. Gorbachev has also promised an investigation.

Although not specifically blaming the black-beret OMON troops for the killings, the Lithuanian Parliament said the Soviet Union had stationed “repressive and terrorist armed forces” in the small republic, resulting in deaths.

In January, Soviet paratroopers backed by tanks attacked and seized broadcast facilities in Vilnius, and 14 people died.

“Our attempts to resist peacefully cannot be endless,” the Supreme Council cautioned, but it said nothing as to how Lithuania, with a population of only 3.7 million, could hope to challenge the Soviet armed forces, OMON and the KGB.

The lawmakers, who proclaimed independence last year in a vote that Gorbachev has rejected as unconstitutional, called for the dispatch of a fact-finding mission by the Conference on Security and Cooperation in Europe, which is made up of European nations plus the United States and Canada, and the invocation of a CSCE mechanism for “extraordinary situations” that would help end the conflict.

Meanwhile, in the southern Soviet region of Dagestan on the Caspian Sea, investigators pored over the wreckage of a train coach shattered by what authorities said was more than 40 pounds of explosives hidden in an attache case and detonated by an alarm clock. Fifteen people were killed in the Wednesday morning bombing of the Moscow-to-Baku express.