Pyongyang, February 11 (KCNA) -- Following are major news items and articles in leading newspapers of the DPRK on Tuesday:

- A groundbreaking ceremony of the largest-ever greenhouse farm and the vegetable science research center took place with splendor. (photos accompanied)

- A week of film show in celebration of February 16, the birth anniversary of Chairman Kim Jong Il, was opened.

- A spokesperson for the Ministry of National Defence of the DPRK issued a press statement titled "We will make clearer our choice of action and mode of counteraction against the U.S." as regards the fact that the nuclear-powered submarine Alexandria of the U.S. Navy entered the Pusan operation base of the ROK.

- Women in North Hwanghae Province volunteered to work at socialist construction sites.

- A delegation of the DPRK Olympic Committee returned home after visiting China.

- The Iranian embassy here hosted a reception on the occasion of the 46th anniversary of the victory in the Islamic revolution of Iran.

Rodong Sinmun

- A quality analysis station was inaugurated in South Hamgyong Province.

- An article exposes the U.S. ceaseless nuclear blackmail against the DPRK for centuries.

Minju Joson

- Provincial people's assembles were held.

- An article marks the anniversary of the victory in the Islamic revolution of Iran. -0-