TEHRAN, Jan. 23 (Xinhua) -- Iran's second day of military drills continues Tuesday with testing of radar and surveillance systems to detect ground and aerial activities by the mock enemy, the spokesperson for the maneuvers said.

The exercise will continue using missiles and artillery fire to eliminate the assumed threats, spokesperson Rear Admiral Lower Half Mahmoud Mousavi told Press TV on Tuesday.

Besides, short-range Nasr rockets along with medium-and long-range surface-to-surface missiles would be used to strike mock enemy targets, Mousavi was quoted as saying.

The Iranian army continued the exercises involving navy, ground force, the air force and the air defense unit on Tuesday.

The exercises, code-named Muhammad Rasulullah-5, cover an expanse of 2.2 million square kilometers, including all of the Makran coasts and the Sea of Oman in the south of the country.