Venezuelan President Hugo Chávez landed early Sunday morning in Cuba, where he will undergo another round of radiation therapy to treat an undisclosed form of cancer.
Cuban head of state Raúl Castro greeted Chávez at the airport, the island's state press reported.
In a televised address before his departure, Chávez said he would be in Havana until Wednesday or Thursday and would be back in time for events marking the 10th anniversary of his restoration to the presidency after a failed 2002 coup.
"I'm going to Cuba to continue the battle for life," he said.
"I have a lot of faith in Christ our lord that that he's going to repeat the miracle (for me) to continue living, to defeat this illness," Chávez said.
He drew a parallel with the 2002 coup, saying he thought it miraculous that he lived through it and regained the presidency.
Chávez, who is running for re-election to another six-year term in October, also announced plans to raise Venezuela's minimum wage. He said it would go up 15 percent in May and another 15 percent in September.
The increase had been expected because of Venezuela's soaring inflation, which currently stands at about 25 percent. The leftist president's government has raised the minimum wage between 20 percent and 30 percent each year during the past decade.
The raise will bring the country's minimum wage from 1,548 Venezuelan bolivars ($360) a month to about 2,048 bolivars ($476) a month starting in September.
Chavez said the wage increase will benefit about 3.9 million workers as well as 2 million retired Venezuelans whose pension benefits vary depending on the minimum wage.