Venezuela will launch a new "complementary" system to bolster the official foreign exchange system, and full details will be given on Tuesday, acting President Nicolas Maduro said.

The government has been promising more economic measures to improve the supply of dollars within a system of strict currency controls introduced by the late socialist leader Hugo Chavez.

In televised comments, Maduro said Venezuela's financial system had enough dollars to feed demand, and that the new arrangement would support the existing CADIVI currency board.

"From this week, Venezuelans who need foreign exchange in special conditions are going to have a complementary system to CADIVI," the acting president said. "The specific details of how it is going to work will be fully explained tomorrow."

Before Chavez died, interim leader Maduro began implementing various economic measures, including a devaluation of the bolivar currency and a change to the oil windfall tax structure.

Economists had been widely predicting the government would create a new system through which people and businesses could access U.S. dollars, beyond the CADIVI board which sells a restricted amount at a price of 6.3 bolivars to the greenback.

(Reporting by Daniel Wallis; Editing by Paul Simao)