CARACAS - Ailing Cuban President Fidel Castro is recovering and has been up and walking-- in fact "almost jogging'' -- in recent days, Venezuelan President Hugo Chavez said Wednesday.

Chavez said he was pleased to hear from Cuban Vice-President Carlos Lage that the 80-year-old Castro is making a recovery. Lage, after meeting with Chavez, said: "We will have Fidel and we will have Raul for a lot more time.''

Their hopeful remarks came less than a week after Chavez said Castro was "battling for his life.''

"Lage told me that Fidel walked I don't know how many minutes yesterday,'' Chavez said Wednesday, noting he suspected Castro was watching his speech on television.

"He's walking more than me, almost jogging. Maybe he's walking while watching us.''

Chavez has regularly reported in generalities on Castro's health since July 31, when the Cuban leader announced he was temporarily stepping aside while he recovered from an operation and was provisionally ceding power to his brother Raul.

Chavez held up a letter and said: "I'm going to show you something, for those who say that Fidel is dying, that he can't talk, that he can't move.''

The TV camera zoomed in on the letter and on Castro's signature in black ink.

"Look closely at the strokes of the signature. We are extremely happy, Fidel, about the news of your recuperation.''

Directing his comments to the U.S. government, Chavez said: "When they threaten Cuba, they threaten Venezuela also.''

"Every day, our unity grows,'' Chavez said, adding the two countries had formed a total of 21 joint ventures as they deepen already strong ties.