CARACAS, Venezuela — Representatives of the Venezuelan government and opposition have returned to Norway for a mediation effort aimed at resolving the political crisis in the South American country, the Norwegian government said Saturday.

Norway said it will facilitate discussions next week in Oslo, in an indication that the negotiation track is gaining momentum after months of escalating tension between Venezuelan President Nicolás Maduro and opposition leader Juan Guaidó.

Top Maduro aide Jorge Rodríguez and Héctor Rodríguez, the governor of Miranda state, both of whom were in Oslo earlier this month for an earlier round of exploratory talks, will once again lead the government delegation. They will be joined this time by Foreign Minister Jorge Arreaza and Larry Devoe, the government’s top human rights official, said a Venezuelan official who was not authorized to discuss the talks and spoke on condition of anonymity.

The opposition delegation is being led by Stalin González, a senior member of the opposition-controlled congress, former Caracas area Mayor Gerardo Blyde and former Transport Minister Fernando Martínez Mottola, according to a person familiar with the talks who also spoke on the condition of anonymity. They will be joined by Vicente Diaz, a supporter of past negotiations with the government who previously served on the nation’s electoral council.

Both delegations traveled Saturday for the meetings, according to the two people.

Norwegian Foreign Minister Ine Eriksen Soreide praised both sides for their involvement.

Representatives of Venezuela’s political factions traveled to the European country earlier this month for talks, but it had been unclear if they would continue to engage with one another amid increased tensions over the opposition’s call for a military uprising on April 30.

The opposition had previously ruled out talks, accusing Maduro of using negotiations between 2016 and 2018 to play for time, and has demanded Maduro’s resignation and early elections. Maduro, in turn, alleges the opposition tried to seize power by force.

The diplomatic effort reflects recognition in Venezuela that neither side has been able to prevail in the struggle for power, leaving the country in a state of political paralysis after years of hyperinflation and shortages of food and medicine. Several million Venezuelans have left the country, creating Latin America’s biggest migration crisis.

The United States and more than 50 other countries support Guaidó’s claim to be Venezuela’s rightful leader. The U.S. has imposed oil sanctions to try to force out Maduro, whose key allies are Cuba, Russia and China.

Norway has a long, successful history of foreign mediation: The country hosted peace talks between Israelis and Palestinians in September 1993 and Maoist rebels and the government in the Philippines in 2011. The government also brokered a 2002 cease-fire between Sri Lankan government and Tamil Tiger rebel negotiators. Seven years ago, mediators from the Colombian government and left-wing FARC rebels held their first direct talks in a decade in Norway.

Associated Press journalist Joshua Goodman contributed from Bogota, Colombia.