BOGOTA (AFP) ― Colombian government negotiators and leftist FARC rebels headed to Norway on Tuesday for peace talks aimed at ending the longest-running insurgency in Latin America.

The first direct talks with the Marxist guerrillas in more than a decade looked set to go ahead in Oslo on Thursday, one day later than planned, with the Colombian government voicing cautious optimism about a possible deal.

Four representatives of the Revolutionary Armed Forces of Colombia (FARC) left from Cuba, according to Carlos Lozano, head of Colombia’s Communist Party.

The government delegation departed from the Colombian capital.

“We do not want to create false expectations, but we do believe there are structural elements that allow us to harbor hope that we will see good news for Colombia,” chief government negotiator Humberto de la Calle said before leaving Bogota.

If the preliminary talks in Oslo go ahead without a hitch, tougher negotiations addressing the nitty-gritty of a deal are scheduled later in Havana.

Together with Cuba, Norway is playing the role of facilitator in the peace process that seeks to put an end to a conflict that has claimed thousands of lives in the past 50 years.

Talks had originally been scheduled to begin on Wednesday near the Norwegian capital, but top FARC negotiator Ivan Marquez was held up by bad weather en route to Cuba.

“We confirm that the Oct. 17 meeting for peace in Colombia will go ahead on Oct. 18 in the afternoon, Oslo time,” read a statement signed by the FARC and the Colombian government on Tuesday.

Norwegian foreign ministry spokeswoman Veslemoey Lothe Salvesen said that a press conference featuring both delegations at a hotel near Oslo, originally scheduled for Wednesday, would now be held 24 hours later.

FARC leader Timoleon Jimenez, also known as Timochenko, said on Monday that the movement’s representatives had experienced unexpected delays, citing problems in getting arrest warrants for some rebels suspended.

According to the Colombian press, tensions were also raised over a last-minute request by the FARC to include a Dutch national, Tanja Nijmeijer, among its representatives.

The peace talks are the fourth official attempt in 30 years at ending the conflict.

The last dialogue collapsed a decade ago when the Colombian government determined that the guerrillas were regrouping in a demilitarized zone it had created to help reach a deal.

This time around, Colombian President Juan Manuel Santos has ruled out a ceasefire during the talks.

On Sunday, rebels blew up two electricity masts in northern Colombia, a region where there have been several clashes with the army.

Founded in 1964 and Latin America’s largest rebel group with 9,200 armed fighters, the FARC may finally be ready for a truce after a long string of setbacks.

In recent years, it has suffered the capture and killing of some of its top leaders, and the depletion of its ranks to half what they were at their peak in the 1990s.

Since his election in 2010, Santos has been preparing the groundwork for an agreement, introducing a law on land restitution that has been a deal-breaker for the rebels.

In addition to land issues, any peace deal is also expected to tackle armed groups’ involvement in drug trafficking, a thorny subject in Colombia, which is the world’s biggest cocaine producer.

The government has said it will give the process just a few months to yield results.