North Korean leader Kim Jong-Un says his country will not use nuclear weapons unless its sovereignty is infringed on by others with nuclear arms, state media reports.
The North will "faithfully fulfilll" its obligation for nuclear non-proliferation and strive for ending nuclear build-up in the world, Kim said in a report to a congress of its ruling Workers' Party which opened on Friday (local time), KCNA news agency said.
The first congress in 36 years began with much fanfare amid anticipation by the South Korean government and experts that the young leader will try to use it to further consolidate power in a state he took over in 2011 after his father's sudden death.
"As a responsible nuclear weapons state, our republic will not use a nuclear weapon unless its sovereignty is encroached upon by any aggressive hostile forces with nukes," KCNA quoted Kim as saying.
"And it will faithfully fulfilll its obligation for non-proliferation and strive for the global denuclearisation."
"The WPK and the DPRK government will improve and normalise the relations with those countries which respect the sovereignty of the DPRK and are friendly towards it, though they had been hostile toward it in the past," Kim was quoted as saying.
DPRK is short for the North's official name, the Democratic People's Republic of Korea.
In a separate item earlier, KCNA said Kim made the comments on the second day of the meeting on Saturday.
Kim also called for improved ties with the rival South by erasing misunderstanding and mistrust, although he had made similar proposals in the past that led to talks by government officials that made little progress.