ANKARA, Dec. 13 (Xinhua) -- Turkish President Recep Tayyip Erdogan on Thursday unveiled the second 100-day action plan, four months after the first one was announced.

Erdogan said the new action plan includes 454 projects worth 24 billion Turkish liras (4.49 billion U.S. dollars), adding that 340 of the 400 projects in the first plan had been completed.

Turkey will start the construction of part of the TurkStream natural gas pipeline project in Turkish territories and finish it by the end of 2019, the president said.

TurkStream is an export gas pipeline set to cross beneath the Black Sea from Russia to Turkey and further extend to Turkey's borders with neighboring countries.

In addition, two new institutes, the Financial Stability and Development Committee and Turkey Development Fund, will be established to boost financial sector and private investment.

Turkey will also sign an agreement for the Akinci project, a high-altitude long-endurance unmanned armed aircraft, Erdogan noted.

After being re-elected as president for another five-year term, Erdogan revealed the first 100-day action plan on Aug. 3, which covers ambitious projects in energy, foreign trade, education, health, agriculture and tourism sectors.