Venezuelan President Hugo Chavez's health situation is "stable ... (but) delicate," his son-in law, Science and Technology Minister Jorge Arreaza, said Wednesday in Cuba, where the president has been hospitalized for three weeks.

"The medical team explains to us that President Chavez's condition continues to be stable ... (but) delicate," said Arreaza via Twitter.

The minister, who is the husband of Chavez's older daughter, Rosa Virginia, said that the president "continues fighting hard and he sends all his love" to the Venezuelan people."

"Determination and patience!!!" added the minister, eight days before Chavez is due to be inaugurated for another term.

The 58-year-old Chavez, who underwent surgery on Dec. 11, is recovering from his fourth cancer operation in 18 months.

Arreaza said that the president's older brother, Barinas state Gov. Adan Chavez, traveled to Havana and that he was meeting with Vice President Nicolas Maduro and Attorney General Cilia Flores.

On Tuesday, Maduro, whom Chavez designated his political successor, once again acknowledged the president's "delicate" health situation.

Meanwhile, the Venezuelan opposition demanded on Wednesday that the government tell "the truth" about Chavez's condition.

Chavez, who took office in 1999, was re-elected in October to another six-year term.

He was first diagnosed with cancer after complaining of pain in his pelvic region during a June 2011 official visit to Cuba. Since then, the former paratrooper has undergone four surgical procedures and courses of chemotherapy and radiation. EFE