An Indonesian minister said Tuesday that the government is speeding up development of infrastructures in two special economic zones aimed at spurring regional growth, local media reported.

"Road construction has been progressing as expected. Everything has been on the track carried out by the public works ministry," Coordinating Minister for the Economy Hatta Rajasa said on the sidelines of a meeting with related ministries to discuss development of special economic zones here.

He said development of Sei Mengke special economic zone in North Sumatra could be integrated with development of nearby ports such as Dumai and Belawan ports.

The construction of special industrial area is also expected to boost development of downstream mineral and palm oil industries, he said.

North Sumatra and neighboring province of Riau are the country's largest producer of palm oil.

For the Tanjung Lesung special economic zone in Banten, Hatta said that it would be designated as a new center of tourist destination area.

Hatta added that several investors have pledged to carry out the infrastructure development in the area, saying that they are ready to build a toll road and airport.

In Tanjung Lesung, government is responsible to carry out road widening works, to be completed in 2013, he said.