Caracas, Venezuela (AP) -- Venezuela's opposition is once again criticizing the secrecy surrounding the condition of President Hugo Chavez following his cancer surgery in Cuba.

Opposition coalition leader Ramon Guillermo Aveledo said at a news conference on Wednesday that the information provided by government officials "continues to be insufficient."

Chavez has not been seen or heard from since the Dec. 11 operation, and Vice President Nicolas Maduro on Tuesday said the president's condition remained "delicate" due to complications arising from a respiratory infection.

Maduro also urged Venezuelans to ignore rumors about Chavez's condition.

Aveledo says the opposition has been respectful during Chavez's illness but that "the secrecy is the source of the rumors."

David Fuller's view It looks like we will see a leadership change in Venezuela before long and hopefully for the best. That could be positive for the South American Continent, particularly if the political relationship with the USA improves. This is something President Obama may be able to instigate. Cuba next?