Colombia's government and the FARC guerrilla group ended another round of negotiations Sunday with mutual recriminations over the lack of progress after 11 months of peace talks.

The chief rebel negotiator, Ivan Marquez, insisted it wasn't the FARC putting the brakes on the peace process.

"At the close of this cycle of talks, the country should be clear about a great truth: we have worked in depth every day," he said. "There hasn't been a day in which we haven't presented proposals and solutions."

Unlike previously, the sides did not issue a joint statement at the end of this round of negotiations, the 15th since the talks to end the near half-century-old conflict began in November.

The government delegation made no statement on Sunday, but on Saturday accused the rebels of delaying the peace process and of "confusing" the public with proposals that have nothing to do with the agenda for the talks.

So far, the sides have reached consensus on only one point -- land reform issues -- on the five point agenda for the talks.

Negotiators are currently on the second agenda point -- political participation by the FARC.

The Revolutionary Armed Forces of Colombia, or FARC, has waged an insurgency against the state since its founding in 1964.

Four previous attempts at a negotiated settlement of the conflict have ended in failure.