BONN, JAN. 13 -- From Paris to Prague, the European reaction to the Soviet crackdown in Lithuania today ranged from sharp words to pledges of assistance to the government in Vilnius.

British Foreign Secretary Douglas Hurd warned that Western support for Soviet President Mikhail Gorbachev "would have to be reviewed if we and our friends and partners came to the conclusion that Soviet policy had been reversed and was no longer a policy of reform."

Hurd and Belgian Foreign Minister Mark Eyskens said the move against Lithuania's rebellious government could jeopardize the $1 billion in emergency food and medical aid that the European Community has promised the Soviets.

"We must explain clearly to the Soviet Union that our aid is conditional," Eyskens said. "We have a means of pressure."

The German and French governments issued a joint statement reminding Gorbachev of his promise not to use violence in Lithuania and calling the move a "blow against democracy and international law."

German Chancellor Helmut Kohl sent a message to Gorbachev and expressed sympathy for the victims of the Soviet assault. A government spokesman declined to reveal the contents of Kohl's message.

Bonn officials said they were worried that the events in Vilnius could spark major immigration from the Baltic states -- a prospect that Kohl's government already had tried to forestall through its massive food aid program.

The 12 foreign ministers of the European Community are to meet in emergency session in Brussels Monday to consider the crises in Lithuania and the Persian Gulf. "With consternation we learned of the bloody events that took place last night in Vilnius," a community statement said. "The {EC} presidency is waiting for explanations from the Soviet authorities."

NATO ministers convened a similar special session today. "Firing at people with machine guns is not exactly what the West wants," a NATO official told Reuter news agency. "The time for silence is over."

British, Belgian and Czechoslovak officials all warned Moscow that despite pressing concerns over the crisis in the gulf, the world community could not be distracted from abuses in the Baltic states.

Italian Foreign Minister Gianni De Michelis compared the Soviet Union with Iraq, saying that neither country will be permitted "a violation of the rules."

In Czechoslovakia, a government statement said the use of force in Lithuania "mars the process of the consolidation of security, peace and relaxation in Europe and undermines confidence in the democratic changes which have been taking place in the Soviet Union in the last few years."

The Czechoslovak government said it would send food and medical supplies to support the current Lithuanian republican government if the military situation allows. The Prague Spring democracy movement was crushed by a Soviet invasion in 1968.

The Prague government's cabinet told Foreign Minister Jiri Dienstbier to contact his Hungarian and Polish counterparts to consider a joint and swift withdrawal from the Warsaw Pact, the already dissolving Soviet-led defense alliance.

The Bonn Foreign Ministry summoned the Soviet ambassador to express concern about the Lithuanian situation. The Bonn statement used strong terms to condemn the Soviet actions.

With the presence of 360,000 Soviet soldiers in eastern Germany, Bonn has taken the lead in trying to persuade Western nations to help avert a political crisis in the Soviet Union by sending billions of dollars in economic and food aid.