Updated

Hundreds of opposition supporters are protesting in Venezuela's capital, demanding the government provide complete details about the health of President Hugo Chavez.

Protesters said authorities have not told the truth about Chavez's condition as they marched through the capital's east Sunday.

Government officials say the cancer-stricken socialist leader is receiving medical treatment including chemotherapy at a military hospital in Caracas.

But officials have provided only vague details regarding the president's health.

Chavez has not appeared or spoken in public since undergoing cancer surgery in Cuba on Dec. 11