Latin American nations participating in the multilateral Contadora peace process for Central America agreed here to resume stalled talks on a regional peace treaty next month in Panama, officials said here today.

A communique read here this morning by Colombian Foreign Minister Augusto Ramirez Ocampo said ministers from the five Central American nations involved in the Contadora process agreed to renew the talks in a meeting here last night. The session was attended by ministers of the four sponsoring nations of Contadora -- Colombia, Mexico, Venezuela and Panama.

The communique said a two-day meeting was scheduled to begin April 11 in Panama City. It said the meeting would focus on "differing positions still outstanding" for the conclusion of a peace treaty to be signed by the five Central American countries -- Nicaragua, El Salvador, Honduras, Costa Rica and Guatemala.

The Contadora process, named for the island where officials of the coordinating nations first met in January 1983 to discuss mediation in Central American conflicts, was interrupted last month because of a dispute between Nicaragua and Costa Rica that now has been resolved.

Nicaraguan President Daniel Ortega, who was here with U.S. Vice President Bush and other foreign leaders for the inauguration yesterday of Brazil's new civilian government, said in a press conference that Nicaragua supported the Contadora process but also seeks separate bilateral negotiations with the United States.

Bush flew on to Honduras for talks with officials there.