MOSCOW, JUNE 27 -- Soviet President Mikhail Gorbachev held his second round of talks in two days with Lithuanian leaders tonight as the parliament of the breakaway Baltic republic groped toward a compromise with the Kremlin over its declaration of independence.

Lithuania's President Vytautas Landsbergis and Prime Minister Kazimiera Prunskiene flew to Moscow for the meeting with the Soviet leader. They were met at the airport by Kremlin officials and returned home without speaking to reporters.

The official Soviet news agency, Tass, quoted a Lithuanian spokesman here, Virgilius Savitskas, as saying the 90-minute meeting with Gorbachev was a "search for common points of contact." Savitskas said the meeting was "in no circumstances . . . negotiations, but rather a clarification of the sides' positions."

Both Landsbergis and Prunskiene have indicated that they would like to end the war of nerves with the Kremlin over Lithuania's March 11 declaration of independence, searching for a compromise formula that would enable Moscow to lift its economic embargo on the republic. The Prunskiene government has proposed a moratorium on the independence declaration to coincide with the opening of formal negotiations with the Soviet leadership and the end of the embargo. The Lithuanian parliament is due to resume debate on the Prunskiene government's proposal Thursday.

A majority of Lithuanian legislators strongly opposes suspension of the independence proclamation, which they say would be tantamount to recognizing the Soviet Union's forcible annexation of Lithuania in 1940. But pressure is mounting on both sides to reach a compromise.

Soviet economic sanctions have resulted in the closing of dozens of factories in Lithuania and the layoff of tens of thousands of workers. The unresolved crisis also has compounded the political and economic problems facing Gorbachev as he heads into a crucial Communist Party congress next week.

Landsbergis had a 90-minute meeting with Gorbachev Tuesday, during which he was told that the Lithuanian proposals for a moratorium did not go far enough toward meeting the Kremlin's demands.

Some of the reformist-controlled city and regional legislatures in the Soviet Union have begun to explore the possibility of bypassing central planners in Moscow and establishing direct links with the Baltic republics. Today, the new mayor of Leningrad and the premier of Estonia issued a joint communique outlining plans for economic, political and cultural cooperation.

The newly elected president of the Soviet Russian republic, Boris Yeltsin, meanwhile, announced that he intends to stop construction of all new nuclear power plants in Russia beginning next Jan. 1. The development of future energy supplies has traditionally been the responsibility of federal authorities, but the Russian legislature has served notice that it intends to take full control of the republic's economic activity.