Crowd of 500 Protests 'Imperialist' Actions in Cubal--Tito Bids U.N. Intervene to Halt Fighting

Special to The New York Times.

WARSAW, April 18--A mob of 500 Polish students and Communist agitators demonstrated at the United States Embassy today against the "Yankee imperialist" invasion of Cuba.

The demonstration was easily contained by a detachment of 200 riot police.  After being addressed by a Cuban Embassy secretary, the crowd milled around a street intersection 100 feet from the three-story embassy building for one and one-half hours.

Demonstrators were prevented from approaching the embassy by a triple row of police standing in line across the narrow street.  Two attempts of the crowd to break through were thwarted.

Shortly after midday reports that the demonstration would be held were circulated in the city.  The protest was organized by the Communist students' organization.

The demonstration began on the campus of Warsaw University at 5 P.M.  A Polish journalist who had visited Cuba addressed the crowd and then a Cuban diplomat rose to denounce "the Yankee traitors" and "the forces of imperialism."

He told a crowd of about 1,000 students and onlookers that the United States had launched Hitler against Poland in 1939 and was using the same tactics to "destroy the Cuban Revolution."

The managers of the rally then adopted a resolution denouncing the United States.  Immediately afterward the march on the embassy began.

Special to The New York Times.
BELGRADE, Yugoslavia, April 18--A reinforced police guard was on duty tonight around the United States Information Agency building in downtown Belgrade.  Three large plate glass windows were smashed by stones during the early morning hours to protest developments in Cuba.

A Foreign Ministry statement to United States Embassy officials expressing regret for the attack said three foreign students at Belgrade University, two of them Cubans, were responsible for the incident.  All three were taken into custody by police, the statement added.

There were no reports of other violent protests although many officials scored "the malicious attack launched by counter-revolutionaries with the support of the American imperialists upon the Cuban people."

A somewhat similar view was expressed by President Tito in a statement issued in Alexandria, Egypt, and distributed by Tan Jug, the official Yugoslav press agency.  Calling for immediate United Nations action to halt the invasion, the Yugoslav Communist chief said:

"I believe it is not only an attack on Cuban and her independence, but also on peace in the world."

Telephone reports from Sofia, the capital of neighboring Bulgaria, said thousands of persons gathered in front of the United States Legation building there this afternoon, shouting anti-American, pro-Castro slogans.

The police rushed reinforcements to the area and pushed the crowd back a block or more form the building.  By late afternoon the police apparently had the situation under control.

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CAIRO, April 18--President Gamal Abdel Nasser of the United Arab Republic sent a message to Premier Castro tonight.

He assured the Cuban leader that "freedom-loving peoples" would not stand idly by while Cuba was attacked.

"The crime against the Cuban people, who are merely trying to insure genuine freedom for themselves, is one against world peace and humanity," Mr. Nasser's message said.

The Egyptian leader asserted that the claim by "imperialists" that the Cuban invasion was conducted by Cuban refugees was false.  "It [the invasion] could not have taken place without material and moral support of the imperialists," Mr. Nasser said.  "Victory will be for freedom, peace and humanity."

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NEW DELHI, India, April 18--Prime Minister Jawaharlal Nehru declared today that developments in Cuba were "very distressing."

The situation was unfortunate in itself because of repercussions it could have on world affairs, he said.  The Prime Minister said, however, that he was still awaiting facts.

In Parliament, Communist attempts to initiate a debate on Cuba were ruled out of order.  Meanwhile, Ajoy Ghosh, General Secretary of the Indian Communist party, issued a statement that expressed hope that India would seek United Nations action to stop invasion of Cuba.

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LONDON, April 18--Denis Healey, Labor's spokesman on foreign affairs, warned today that the United States Administration's friends abroad would be "deeply dismayed" if it was shown that the United States was involved in an invasion of Cuba.

Socialist clamor for a debate on the "invasion of Cuba" and the extent of the United States involvement was frustrated in the House of Commons.

LONDON, April 18 (AP)--Western Europe today generally welcomed the attack on Cuba as a blow to communism and expressed the belief it had the backing of the United States.

No demonstrations were reported today in Western nations, but the official Soviet press agency Tass reported "popular indignation and protest rallies" in Japan, Brazil, Uruguay, North Korea, Mongolia, Czechoslovakia, North Vietnam, Bulgaria and Rumania.

Most non-Communist Italian newspapers gave qualified support to anti-Castro forces, but said that it could not be denied the United States was behind the attack.

Special to The New York Times.

PARIS, April 18--A crowd of about 300 Left-Wing demonstrators shouted slogans in favor of Premier Fidel Castro's regime in front of the United States Embassy today.  The crowd was dispersed by the police late this afternoon.

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RABAT, Morocco, April 18--Morocco will support Cuba against any foreign aggression , according to an official declaration published today by the Moroccan press agency Magreb Arab Press.

The agency quoted official sources as having said that if it was proved that the struggle was an internal one between two Cuban factions, the tendency would be for Morocco not to take sides.

BERLIN, April 18--East German leaders pledged today solidarity with the Cuban regime of Fidel Castro in the face of what they called "armed American aggression."

Paul Verner, a member of the Communist Politburo, who visited Cuba last year, said in an interview with the official press agency ADN, "there can be no doubt that the aggression against Cuba is being prepared, financed, armed and equipped by the United States."

TOKYO, April 18 (UPI)--Ultra Left-Wing Japanese college students staged a stormy anti-American demonstration before the United States Embassy today and announced  they would hold four more demonstrations in Tokyo tomorrow.

Tomorrow's demonstrations coincide with the arrival of the new United States Ambassador, Edwin O. Reischauer.  The demonstration today was for alleged United States intervention in Cuba.